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#b8cb2c

a balanced, vivid yellow · warm · closest name: Yellow Green

RGB
184, 203, 44
HSL
67°, 64%, 48%
CMYK
9, 0, 78, 20
Luminance
0.5308

At a glance

Every number on this page in one read: what #b8cb2c is made of, how bright it looks, and which way it leans.

Hex
#b8cb2c
Hue
67°
yellow
Saturation
64%
vivid
Lightness
48%
balanced
Brightness
80%
HSV value
Perceived
73%
weighted brightness
Luminance
0.5308
WCAG relative
Temperature
Warm
31/100 cool
Color family
Yellow
Tone
Vivid
Best ink
Black
11.62:1
Closest name
Yellow Green
ΔE2000 6.3
Where it sits
Hue67° of 360°
Saturation64%
Lightness48%
Temperature
Warm ← → Cool31% cool

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

Every format

HEX#b8cb2c
RGBrgb(184, 203, 44)
HSLhsl(67, 64%, 48%)
CMYKcmyk(9%, 0%, 78%, 20%)
LABlab(77.9 -25.3 70.4)
LCHlch(77.9 74.8 109.8)
OKLCHoklch(0.801 0.172 116.6)
Decimal12110636
Display P3color(display-p3 0.722 0.796 0.173)

Copy-ready code

/* CSS */
color: #b8cb2c;
background-color: #b8cb2c;
/* Tailwind (arbitrary) */
class="text-[#b8cb2c] bg-[#b8cb2c]"
/* SCSS */
$brand: #b8cb2c;
/* SwiftUI */
Color(red: 0.722, green: 0.796, blue: 0.173)
/* Android */
Color.parseColor("#b8cb2c")
/* Flutter */
Color(0xFFB8CB2C)
/* Python / OpenCV (BGR) */
(44, 203, 184)

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 #b8cb2c · 11.62:1
Use #000000AAA at every size.
Aa
White text · 1.81:1
AA fail · AA large fail · AAA fail
Aa
Black text · 11.62:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b8cb2c as text scores 1.81:1 on white and 11.62:1 on black.

Accessibility — WCAG contrast

Aa
#b8cb2c on white: 1.81:1
AA ✗ fail · AA-large · AAA
Aa
#b8cb2c on black: 11.62:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #D9C000
deuteranopia · #D8C23B
tritanopia · #C4BFAE

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #b8cb2c is pinned to step 600; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FAFBF4
#F6F7E8
#ECF1CB
#E2EBA3
#D4E175
#C6D747
#b8cb2c
#98A824
#7A861D
#596119
#373D10
Base = 600Lightest = 50 · #FAFBF4Darkest = 950 · #373D10
:root {
  --brand-50: #FAFBF4;
  --brand-100: #F6F7E8;
  --brand-200: #ECF1CB;
  --brand-300: #E2EBA3;
  --brand-400: #D4E175;
  --brand-500: #C6D747;
  --brand-600: #b8cb2c;
  --brand-700: #98A824;
  --brand-800: #7A861D;
  --brand-900: #596119;
  --brand-950: #373D10;
  --brand: #b8cb2c;
  --brand-ink: #000000;
}

Colors that work with #b8cb2c

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#FAFAF4
Tinted page background
Border#E7EDC0
Hairlines and dividers
Muted text#919B4B
Captions on the surface
Accent#273DD0
Second voice, not a rival
Dark variant#5F6917
Hover, pressed, headers
Light variant#F8FAEA
Selected rows, tints
Dark surface#222414
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 #b8cb2c

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
  • 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
  • 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#3F2CCB
Analogous left#CB8E2C
Analogous right#68CB2C
Split-complement 1#2C68CB
Split-complement 2#8E2CCB
Triadic 1#2CB8CB
Triadic 2#CB2CB8
Tetradic#2CCB8E

RGB percentages

Red72.2%
Green79.6%
Blue17.3%

CMYK percentages

Cyan9.4%
Magenta0.0%
Yellow78.3%
Key (black)20.4%

Color previews

#b8cb2c text on a black background

contrast 11.62:1

Card sample

#b8cb2c text on a white background

contrast 1.81:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #b8cb2c;
Background color
Panel with #b8cb2c background
background-color: #b8cb2c;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b8cb2c;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(184, 203, 44, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(184, 203, 44, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b8cb2c;
background: linear-gradient(135deg, #b8cb2c, #4ECB2C);

Monochromatic scale

Palettes built from #b8cb2c

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.

#b8cb2c in the real world

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

Industries
RetailLeisureEnergyWarning systems
Common UI roles
ButtonsLinksFocus statesCharts
Print note

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

#b8cb2c, answered

What color is #b8cb2c?

#b8cb2c is a balanced vivid yellow, closest to Yellow Green (ΔE2000 6.3). It sits at 67° on the hue wheel with 64% saturation and 48% lightness, which reads as warm.

What is the RGB value of #b8cb2c?

rgb(184, 203, 44) — 184 red, 203 green and 44 blue out of 255, or 72.2% / 79.6% / 17.3% by channel.

Is #b8cb2c a light or a dark color?

It is a light color. Relative luminance is 0.5308 and perceived brightness is 73%, so black text on it reaches 11.62:1.

Should I use black or white text on #b8cb2c?

Black. It scores 11.62:1 against #b8cb2c, versus 1.81:1 for white — AAA at any size.

What is the complementary color of #b8cb2c?

#3F2CCB sits directly opposite on the wheel. Softer options are the split-complements #2C68CB and #8E2CCB, which give the same contrast with far less vibration.

What colors go well with #b8cb2c?

For interface work: #FAFAF4 as the surface, #E7EDC0 for borders, #919B4B for secondary text, #273DD0 as an accent and #5F6917 for hover and pressed states. For a palette, the analogous pair #CB8E2C and #68CB2C stays calm, while #3F2CCB is the loudest partner.

What is #b8cb2c in CMYK for printing?

cmyk(9%, 0%, 78%, 20%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #b8cb2c warm or cool?

Warm — it scores 31 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #CBA42C; nudged cooler, #7ECD29.

Work with #b8cb2c in the Color Lab