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#1eb686

a dark, vivid cyan · cool · closest name: Medium Sea Green

RGB
30, 182, 134
HSL
161°, 72%, 42%
CMYK
84, 0, 26, 29
Luminance
0.3545

At a glance

Every number on this page in one read: what #1eb686 is made of, how bright it looks, and which way it leans.

Hex
#1eb686
Hue
161°
cyan
Saturation
72%
vivid
Lightness
42%
dark
Brightness
71%
HSV value
Perceived
58%
weighted brightness
Luminance
0.3545
WCAG relative
Temperature
Cool
80/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
8.09:1
Closest name
Medium Sea Green
ΔE2000 5
Where it sits
Hue161° of 360°
Saturation72%
Lightness42%
Temperature
Warm ← → Cool80% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Every format

HEX#1eb686
RGBrgb(30, 182, 134)
HSLhsl(161, 72%, 42%)
CMYKcmyk(84%, 0%, 26%, 29%)
LABlab(66.1 -48.9 14.0)
LCHlch(66.1 50.9 164.1)
OKLCHoklch(0.691 0.139 165.1)
Decimal2012806
Display P3color(display-p3 0.118 0.714 0.525)

Copy-ready code

/* CSS */
color: #1eb686;
background-color: #1eb686;
/* Tailwind (arbitrary) */
class="text-[#1eb686] bg-[#1eb686]"
/* SCSS */
$brand: #1eb686;
/* SwiftUI */
Color(red: 0.118, green: 0.714, blue: 0.525)
/* Android */
Color.parseColor("#1eb686")
/* Flutter */
Color(0xFF1EB686)
/* Python / OpenCV (BGR) */
(134, 182, 30)

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #1eb686 · 8.09:1
Use #000000AAA at every size.
Aa
White text · 2.60:1
AA fail · AA large fail · AAA fail
Aa
Black text · 8.09:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #1eb686 as text scores 2.60:1 on white and 8.09:1 on black.

Accessibility — WCAG contrast

Aa
#1eb686 on white: 2.60:1
AA ✗ fail · AA-large · AAA
Aa
#1eb686 on black: 8.09:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #B2A883
deuteranopia · #A09B89
tritanopia · #00B6A9

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #1eb686 is pinned to step 700; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F3FCF9
#E7F8F3
#C9F3E6
#9FEFD6
#6FE7C1
#3EDFAD
#23D29B
#1eb686
#178C67
#15664C
#0D3F30
Base = 700Lightest = 50 · #F3FCF9Darkest = 950 · #0D3F30
:root {
  --brand-50: #F3FCF9;
  --brand-100: #E7F8F3;
  --brand-200: #C9F3E6;
  --brand-300: #9FEFD6;
  --brand-400: #6FE7C1;
  --brand-500: #3EDFAD;
  --brand-600: #23D29B;
  --brand-700: #1eb686;
  --brand-800: #178C67;
  --brand-900: #15664C;
  --brand-950: #0D3F30;
  --brand: #1eb686;
  --brand-ink: #000000;
}

Colors that work with #1eb686

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F4FAF8
Tinted page background
Border#C0EDDF
Hairlines and dividers
Muted text#4B9B82
Captions on the surface
Accent#BA1A75
Second voice, not a rival
Dark variant#126D51
Hover, pressed, headers
Light variant#E9FBF6
Selected rows, tints
Dark surface#14241F
Dark-mode background
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

How to use #1eb686

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • Black text placed on it
  • Thin strokes and 1px borders — they disappear on light UI
  • Pairing with a same-lightness hue — edges vibrate

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#B61E4E
Analogous left#1EB63A
Analogous right#1E9AB6
Split-complement 1#B61E9A
Split-complement 2#B63A1E
Triadic 1#861EB6
Triadic 2#B6861E
Tetradic#3A1EB6

RGB percentages

Red11.8%
Green71.4%
Blue52.5%

CMYK percentages

Cyan83.5%
Magenta0.0%
Yellow26.4%
Key (black)28.6%

Color previews

#1eb686 text on a black background

contrast 8.09:1

Card sample

#1eb686 text on a white background

contrast 2.60:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #1eb686;
Background color
Panel with #1eb686 background
background-color: #1eb686;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #1eb686;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(30, 182, 134, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(30, 182, 134, 0.45);
Border & gradient
Gradient panel
border: 3px solid #1eb686;
background: linear-gradient(135deg, #1eb686, #1E81B6);

Monochromatic scale

Palettes built from #1eb686

Shades — darker

Tints — lighter

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#1eb686 in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyTravelHealthcareMedia
Common UI roles
ButtonsLinksFocus statesCharts
Print note

Converts to four-color process without much drama. Proof it anyway.

#1eb686, answered

What color is #1eb686?

#1eb686 is a dark vivid cyan, closest to Medium Sea Green (ΔE2000 5). It sits at 161° on the hue wheel with 72% saturation and 42% lightness, which reads as cool.

What is the RGB value of #1eb686?

rgb(30, 182, 134) — 30 red, 182 green and 134 blue out of 255, or 11.8% / 71.4% / 52.5% by channel.

Is #1eb686 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3545 and perceived brightness is 58%, so black text on it reaches 8.09:1.

Should I use black or white text on #1eb686?

Black. It scores 8.09:1 against #1eb686, versus 2.60:1 for white — AAA at any size.

What is the complementary color of #1eb686?

#B61E4E sits directly opposite on the wheel. Softer options are the split-complements #B61E9A and #B63A1E, which give the same contrast with far less vibration.

What colors go well with #1eb686?

For interface work: #F4FAF8 as the surface, #C0EDDF for borders, #4B9B82 for secondary text, #BA1A75 as an accent and #126D51 for hover and pressed states. For a palette, the analogous pair #1EB63A and #1E9AB6 stays calm, while #B61E4E is the loudest partner.

What is #1eb686 in CMYK for printing?

cmyk(84%, 0%, 26%, 29%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #1eb686 warm or cool?

Cool — it scores 80 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #1EB64E; nudged cooler, #1CB0B8.

Work with #1eb686 in the Color Lab