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#bbc73d

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

RGB
187, 199, 61
HSL
65°, 55%, 51%
CMYK
6, 0, 69, 22
Luminance
0.5175

At a glance

Every number on this page in one read: what #bbc73d is made of, how bright it looks, and which way it leans.

Hex
#bbc73d
Hue
65°
yellow
Saturation
55%
vivid
Lightness
51%
balanced
Brightness
78%
HSV value
Perceived
72%
weighted brightness
Luminance
0.5175
WCAG relative
Temperature
Warm
29/100 cool
Color family
Yellow
Tone
Vivid
Best ink
Black
11.35:1
Closest name
Yellow Green
ΔE2000 7.3
Where it sits
Hue65° of 360°
Saturation55%
Lightness51%
Temperature
Warm ← → Cool29% 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#bbc73d
RGBrgb(187, 199, 61)
HSLhsl(65, 55%, 51%)
CMYKcmyk(6%, 0%, 69%, 22%)
LABlab(77.1 -21.3 64.1)
LCHlch(77.1 67.6 108.4)
OKLCHoklch(0.795 0.157 114.3)
Decimal12306237
Display P3color(display-p3 0.733 0.780 0.239)

Copy-ready code

/* CSS */
color: #bbc73d;
background-color: #bbc73d;
/* Tailwind (arbitrary) */
class="text-[#bbc73d] bg-[#bbc73d]"
/* SCSS */
$brand: #bbc73d;
/* SwiftUI */
Color(red: 0.733, green: 0.780, blue: 0.239)
/* Android */
Color.parseColor("#bbc73d")
/* Flutter */
Color(0xFFBBC73D)
/* Python / OpenCV (BGR) */
(61, 199, 187)

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 #bbc73d · 11.35:1
Use #000000AAA at every size.
Aa
White text · 1.85:1
AA fail · AA large fail · AAA fail
Aa
Black text · 11.35:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #bbc73d as text scores 1.85:1 on white and 11.35:1 on black.

Accessibility — WCAG contrast

Aa
#bbc73d on white: 1.85:1
AA ✗ fail · AA-large · AAA
Aa
#bbc73d on black: 11.35:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #D5BD26
deuteranopia · #D5C047
tritanopia · #C7BBAC

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #bbc73d 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
#F5F6E9
#EBEECE
#E0E6A8
#D1D97C
#C2CD51
#bbc73d
#959E2E
#777F25
#575C1E
#363A13
Base = 600Lightest = 50 · #FAFBF4Darkest = 950 · #363A13
:root {
  --brand-50: #FAFBF4;
  --brand-100: #F5F6E9;
  --brand-200: #EBEECE;
  --brand-300: #E0E6A8;
  --brand-400: #D1D97C;
  --brand-500: #C2CD51;
  --brand-600: #bbc73d;
  --brand-700: #959E2E;
  --brand-800: #777F25;
  --brand-900: #575C1E;
  --brand-950: #363A13;
  --brand: #bbc73d;
  --brand-ink: #000000;
}

Colors that work with #bbc73d

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#E9EDC0
Hairlines and dividers
Muted text#949B4B
Captions on the surface
Accent#3850CC
Second voice, not a rival
Dark variant#5D631D
Hover, pressed, headers
Light variant#F8F9EB
Selected rows, tints
Dark surface#232414
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 #bbc73d

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#493DC7
Analogous left#C78E3D
Analogous right#76C73D
Split-complement 1#3D76C7
Split-complement 2#8E3DC7
Triadic 1#3DBBC7
Triadic 2#C73DBB
Tetradic#3DC78E

RGB percentages

Red73.3%
Green78.0%
Blue23.9%

CMYK percentages

Cyan6.0%
Magenta0.0%
Yellow69.3%
Key (black)22.0%

Color previews

#bbc73d text on a black background

contrast 11.35:1

Card sample

#bbc73d text on a white background

contrast 1.85:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #bbc73d;
Background color
Panel with #bbc73d background
background-color: #bbc73d;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #bbc73d;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(187, 199, 61, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(187, 199, 61, 0.45);
Border & gradient
Gradient panel
border: 3px solid #bbc73d;
background: linear-gradient(135deg, #bbc73d, #5FC73D);

Monochromatic scale

Palettes built from #bbc73d

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.

#bbc73d 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.

#bbc73d, answered

What color is #bbc73d?

#bbc73d is a balanced vivid yellow, closest to Yellow Green (ΔE2000 7.3). It sits at 65° on the hue wheel with 55% saturation and 51% lightness, which reads as warm.

What is the RGB value of #bbc73d?

rgb(187, 199, 61) — 187 red, 199 green and 61 blue out of 255, or 73.3% / 78% / 23.9% by channel.

Is #bbc73d a light or a dark color?

It is a light color. Relative luminance is 0.5175 and perceived brightness is 72%, so black text on it reaches 11.35:1.

Should I use black or white text on #bbc73d?

Black. It scores 11.35:1 against #bbc73d, versus 1.85:1 for white — AAA at any size.

What is the complementary color of #bbc73d?

#493DC7 sits directly opposite on the wheel. Softer options are the split-complements #3D76C7 and #8E3DC7, which give the same contrast with far less vibration.

What colors go well with #bbc73d?

For interface work: #FAFAF4 as the surface, #E9EDC0 for borders, #949B4B for secondary text, #3850CC as an accent and #5D631D for hover and pressed states. For a palette, the analogous pair #C78E3D and #76C73D stays calm, while #493DC7 is the loudest partner.

What is #bbc73d in CMYK for printing?

cmyk(6%, 0%, 69%, 22%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #bbc73d warm or cool?

Warm — it scores 29 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #C7A03D; nudged cooler, #89CA3B.

Work with #bbc73d in the Color Lab