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#cef1c9

a pale, vivid green · cool · closest name: Honey Dew

RGB
206, 241, 201
HSL
113°, 59%, 87%
CMYK
15, 0, 17, 6
Luminance
0.8025

At a glance

Every number on this page in one read: what #cef1c9 is made of, how bright it looks, and which way it leans.

Hex
#cef1c9
Hue
113°
green
Saturation
59%
vivid
Lightness
87%
pale
Brightness
95%
HSV value
Perceived
89%
weighted brightness
Luminance
0.8025
WCAG relative
Temperature
Cool
59/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
17.05:1
Closest name
Honey Dew
ΔE2000 10.3
Where it sits
Hue113° of 360°
Saturation59%
Lightness87%
Temperature
Warm ← → Cool59% 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#cef1c9
RGBrgb(206, 241, 201)
HSLhsl(113, 59%, 87%)
CMYKcmyk(15%, 0%, 17%, 6%)
LABlab(91.8 -18.7 15.6)
LCHlch(91.8 24.3 140.1)
OKLCHoklch(0.922 0.065 141.6)
Decimal13562313
Display P3color(display-p3 0.808 0.945 0.788)

Copy-ready code

/* CSS */
color: #cef1c9;
background-color: #cef1c9;
/* Tailwind (arbitrary) */
class="text-[#cef1c9] bg-[#cef1c9]"
/* SCSS */
$brand: #cef1c9;
/* SwiftUI */
Color(red: 0.808, green: 0.945, blue: 0.788)
/* Android */
Color.parseColor("#cef1c9")
/* Flutter */
Color(0xFFCEF1C9)
/* Python / OpenCV (BGR) */
(201, 241, 206)

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 #cef1c9 · 17.05:1
Use #000000AAA at every size.
Aa
White text · 1.23:1
AA fail · AA large fail · AAA fail
Aa
Black text · 17.05:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #cef1c9 as text scores 1.23:1 on white and 17.05:1 on black.

Accessibility — WCAG contrast

Aa
#cef1c9 on white: 1.23:1
AA ✗ fail · AA-large · AAA
Aa
#cef1c9 on black: 17.05:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #F3EAC7
deuteranopia · #EDE6CB
tritanopia · #CCEEE6

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #cef1c9 is pinned to step 200; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F5FBF4
#EAF7E9
#cef1c9
#AEE8A6
#86DC79
#5DD14D
#44C232
#39A22A
#2E8222
#245E1C
#173B12
Base = 200Lightest = 50 · #F5FBF4Darkest = 950 · #173B12
:root {
  --brand-50: #F5FBF4;
  --brand-100: #EAF7E9;
  --brand-200: #cef1c9;
  --brand-300: #AEE8A6;
  --brand-400: #86DC79;
  --brand-500: #5DD14D;
  --brand-600: #44C232;
  --brand-700: #39A22A;
  --brand-800: #2E8222;
  --brand-900: #245E1C;
  --brand-950: #173B12;
  --brand: #cef1c9;
  --brand-ink: #000000;
}

Colors that work with #cef1c9

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#F5FAF4
Tinted page background
Border#C5EDC0
Hairlines and dividers
Muted text#559B4B
Captions on the surface
Accent#7527A5
Second voice, not a rival
Dark variant#24651A
Hover, pressed, headers
Light variant#EDFAEB
Selected rows, tints
Dark surface#162414
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 #cef1c9

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
  • Card and section backgrounds
  • 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
  • White text placed on it
  • 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#ECC9F1
Analogous left#E2F1C9
Analogous right#C9F1D8
Split-complement 1#D8C9F1
Split-complement 2#F1C9E2
Triadic 1#C9CEF1
Triadic 2#F1C9CE
Tetradic#C9E2F1

RGB percentages

Red80.8%
Green94.5%
Blue78.8%

CMYK percentages

Cyan14.5%
Magenta0.0%
Yellow16.6%
Key (black)5.5%

Color previews

#cef1c9 text on a black background

contrast 17.05:1

Card sample

#cef1c9 text on a white background

contrast 1.23:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #cef1c9;
Background color
Panel with #cef1c9 background
background-color: #cef1c9;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #cef1c9;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(206, 241, 201, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(206, 241, 201, 0.45);
Border & gradient
Gradient panel
border: 3px solid #cef1c9;
background: linear-gradient(135deg, #cef1c9, #C9F1DF);

Monochromatic scale

Palettes built from #cef1c9

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.

#cef1c9 in the real world

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

Industries
SustainabilityFinanceHealth and wellnessAgriculture
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

Very light tints can drop out on uncoated stock; check it at 100% size before signing off.

#cef1c9, answered

What color is #cef1c9?

#cef1c9 is a pale vivid green, closest to Honey Dew (ΔE2000 10.3). It sits at 113° on the hue wheel with 59% saturation and 87% lightness, which reads as cool.

What is the RGB value of #cef1c9?

rgb(206, 241, 201) — 206 red, 241 green and 201 blue out of 255, or 80.8% / 94.5% / 78.8% by channel.

Is #cef1c9 a light or a dark color?

It is a light color. Relative luminance is 0.8025 and perceived brightness is 89%, so black text on it reaches 17.05:1.

Should I use black or white text on #cef1c9?

Black. It scores 17.05:1 against #cef1c9, versus 1.23:1 for white — AAA at any size.

What is the complementary color of #cef1c9?

#ECC9F1 sits directly opposite on the wheel. Softer options are the split-complements #D8C9F1 and #F1C9E2, which give the same contrast with far less vibration.

What colors go well with #cef1c9?

For interface work: #F5FAF4 as the surface, #C5EDC0 for borders, #559B4B for secondary text, #7527A5 as an accent and #24651A for hover and pressed states. For a palette, the analogous pair #E2F1C9 and #C9F1D8 stays calm, while #ECC9F1 is the loudest partner.

What is #cef1c9 in CMYK for printing?

cmyk(15%, 0%, 17%, 6%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #cef1c9 warm or cool?

Cool — it scores 59 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #DDF1C9; nudged cooler, #C8F2D2.

Work with #cef1c9 in the Color Lab