#B1C43F#B1C43F

#B1C43F is a light, vivid yellow. Relative luminance 0.492; OKLCH L 78.1% C 0.156 H 117.2°. Best body text is #000000 at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#B1C43F
RGB	rgb(177, 196, 63)
HSL	hsl(69, 53%, 51%)
HSV	hsv(69, 68%, 77%)
CMYK	cmyk(9.7%, 0%, 67.9%, 23.1%)
CIE-LAB	lab(75.57, -23.87, 61.58)
CIE-LCH	lch(75.57, 66.04, 111.19°)
OKLab	oklab(78.12% -0.071 0.1384)
OKLCH	oklch(78.12% 0.156 117.2)
XYZ	xyz(38.7694, 49.1863, 12.1532)
Luminance	0.4919 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C43F #523FC4

analogous

#C4943F #B1C43F #6FC43F

triadic

#B1C43F #3FB1C4 #C43FB1

tetradic

#B1C43F #3FC494 #523FC4 #C43F6F

square

#B1C43F #3FC494 #523FC4 #C43F6F

split-complementary

#B1C43F #3F6FC4 #943FC4

monochromatic

#5E6820 #88972E #B1C43F #C4D26E #D7E19D

Accessibility & contrast

On white

1.94

#B1C43F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.84

#B1C43F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C43F

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C43F	#FFFFFF	#000000	##000000
##B1C43F	1.00	1.94	10.84	10.84
#FFFFFF	1.94	1.00	21.00	21.00
#000000	10.84	21.00	1.00	1.00
##000000	10.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1BA2B

Deuteranopia (green-blind)

#CFBB49

Tritanopia (blue-blind)

#BCB9A9

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #b1c43f;
/* rgb */ color: rgb(177, 196, 63);
/* oklch */ color: oklch(78.1% 0.156 117.2);

Tailwind

colors: {
  custom: {
    50: '#cbd57c',
    500: '#b1c43f',
    950: '#000000',
  },
}

SCSS

$custom: #b1c43f;
$custom-light: #cbd57c;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c43f",
  "rgb": {
    "r": 177,
    "g": 196,
    "b": 63
  },
  "hsl": {
    "h": 68.571,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.78118,
    "c": 0.15555,
    "h": 117.2
  },
  "luminance": 0.49186
}

Semantic roles & 50–950 ramp

primary

#B1C43F

secondary

#9A92CD

accent

#4BDC60

background

#FCFDF7

surface

#F9FAEE

border

#D2D3C9

text

#14140A

muted

#82837C

Preview Lab

Preview with #B1C43F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →