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#b9cd49

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

RGB
185, 205, 73
HSL
69°, 57%, 55%
CMYK
10, 0, 64, 20
Luminance
0.5446

At a glance

Every number on this page in one read: what #b9cd49 is made of, how bright it looks, and which way it leans.

Hex
#b9cd49
Hue
69°
yellow
Saturation
57%
vivid
Lightness
55%
balanced
Brightness
80%
HSV value
Perceived
74%
weighted brightness
Luminance
0.5446
WCAG relative
Temperature
Warm
33/100 cool
Color family
Yellow
Tone
Vivid
Best ink
Black
11.89:1
Closest name
Yellow Green
ΔE2000 5.6
Where it sits
Hue69° of 360°
Saturation57%
Lightness55%
Temperature
Warm ← → Cool33% 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#b9cd49
RGBrgb(185, 205, 73)
HSLhsl(69, 57%, 55%)
CMYKcmyk(10%, 0%, 64%, 20%)
LABlab(78.7 -24.4 61.1)
LCHlch(78.7 65.8 111.7)
OKLCHoklch(0.808 0.156 117.4)
Decimal12176713
Display P3color(display-p3 0.725 0.804 0.286)

Copy-ready code

/* CSS */
color: #b9cd49;
background-color: #b9cd49;
/* Tailwind (arbitrary) */
class="text-[#b9cd49] bg-[#b9cd49]"
/* SCSS */
$brand: #b9cd49;
/* SwiftUI */
Color(red: 0.725, green: 0.804, blue: 0.286)
/* Android */
Color.parseColor("#b9cd49")
/* Flutter */
Color(0xFFB9CD49)
/* Python / OpenCV (BGR) */
(73, 205, 185)

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 #b9cd49 · 11.89:1
Use #000000AAA at every size.
Aa
White text · 1.77:1
AA fail · AA large fail · AAA fail
Aa
Black text · 11.89:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b9cd49 as text scores 1.77:1 on white and 11.89:1 on black.

Accessibility — WCAG contrast

Aa
#b9cd49 on white: 1.77:1
AA ✗ fail · AA-large · AAA
Aa
#b9cd49 on black: 11.89:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #DAC237
deuteranopia · #D8C452
tritanopia · #C4C2B2

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #b9cd49 is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FAFBF4
#F4F6E9
#E9EECD
#DDE7A7
#CCDB7B
#b9cd49
#ABC035
#8EA02C
#728023
#545D1D
#343A12
Base = 500Lightest = 50 · #FAFBF4Darkest = 950 · #343A12
:root {
  --brand-50: #FAFBF4;
  --brand-100: #F4F6E9;
  --brand-200: #E9EECD;
  --brand-300: #DDE7A7;
  --brand-400: #CCDB7B;
  --brand-500: #b9cd49;
  --brand-600: #ABC035;
  --brand-700: #8EA02C;
  --brand-800: #728023;
  --brand-900: #545D1D;
  --brand-950: #343A12;
  --brand: #b9cd49;
  --brand-ink: #000000;
}

Colors that work with #b9cd49

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#F9FAF4
Tinted page background
Border#E6EDC0
Hairlines and dividers
Muted text#8F9B4B
Captions on the surface
Accent#4452D2
Second voice, not a rival
Dark variant#59641B
Hover, pressed, headers
Light variant#F7FAEB
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 #b9cd49

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#5D49CD
Analogous left#CD9F49
Analogous right#77CD49
Split-complement 1#4977CD
Split-complement 2#9F49CD
Triadic 1#49B9CD
Triadic 2#CD49B9
Tetradic#49CD9F

RGB percentages

Red72.5%
Green80.4%
Blue28.6%

CMYK percentages

Cyan9.8%
Magenta0.0%
Yellow64.4%
Key (black)19.6%

Color previews

#b9cd49 text on a black background

contrast 11.89:1

Card sample

#b9cd49 text on a white background

contrast 1.77:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #b9cd49;
Background color
Panel with #b9cd49 background
background-color: #b9cd49;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b9cd49;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(185, 205, 73, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(185, 205, 73, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b9cd49;
background: linear-gradient(135deg, #b9cd49, #61CD49);

Monochromatic scale

Palettes built from #b9cd49

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.

#b9cd49 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.

#b9cd49, answered

What color is #b9cd49?

#b9cd49 is a balanced vivid yellow, closest to Yellow Green (ΔE2000 5.6). It sits at 69° on the hue wheel with 57% saturation and 55% lightness, which reads as warm.

What is the RGB value of #b9cd49?

rgb(185, 205, 73) — 185 red, 205 green and 73 blue out of 255, or 72.5% / 80.4% / 28.6% by channel.

Is #b9cd49 a light or a dark color?

It is a light color. Relative luminance is 0.5446 and perceived brightness is 74%, so black text on it reaches 11.89:1.

Should I use black or white text on #b9cd49?

Black. It scores 11.89:1 against #b9cd49, versus 1.77:1 for white — AAA at any size.

What is the complementary color of #b9cd49?

#5D49CD sits directly opposite on the wheel. Softer options are the split-complements #4977CD and #9F49CD, which give the same contrast with far less vibration.

What colors go well with #b9cd49?

For interface work: #F9FAF4 as the surface, #E6EDC0 for borders, #8F9B4B for secondary text, #4452D2 as an accent and #59641B for hover and pressed states. For a palette, the analogous pair #CD9F49 and #77CD49 stays calm, while #5D49CD is the loudest partner.

What is #b9cd49 in CMYK for printing?

cmyk(10%, 0%, 64%, 20%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #b9cd49 warm or cool?

Warm — it scores 33 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #CDB149; nudged cooler, #88CF47.

Work with #b9cd49 in the Color Lab