#B1C53B#B1C53B

#B1C53B is a light, vivid yellow. Relative luminance 0.496; OKLCH L 78.3% C 0.159 H 117.4°. Best body text is #000000 at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#B1C53B
RGB	rgb(177, 197, 59)
HSL	hsl(69, 54%, 50%)
HSV	hsv(69, 70%, 77%)
CMYK	cmyk(10.2%, 0%, 70.1%, 22.7%)
CIE-LAB	lab(75.82, -24.59, 63.33)
CIE-LCH	lch(75.82, 67.94, 111.22°)
OKLab	oklab(78.31% -0.0734 0.1415)
OKLCH	oklch(78.31% 0.159 117.4)
XYZ	xyz(38.8880, 49.5958, 11.6612)
Luminance	0.4960 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C53B #4F3BC5

analogous

#C5943B #B1C53B #6CC53B

triadic

#B1C53B #3BB1C5 #C53BB1

tetradic

#B1C53B #3BC594 #4F3BC5 #C53B6C

square

#B1C53B #3BC594 #4F3BC5 #C53B6C

split-complementary

#B1C53B #3B6CC5 #943BC5

monochromatic

#5D671F #87962C #B1C53B #C4D36A #D7E199

Accessibility & contrast

On white

1.92

#B1C53B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.92

#B1C53B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C53B

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C53B	#FFFFFF	#000000	##000000
##B1C53B	1.00	1.92	10.92	10.92
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.92	21.00	1.00	1.00
##000000	10.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2BA24

Deuteranopia (green-blind)

#D0BC46

Tritanopia (blue-blind)

#BCBAAA

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #b1c53b;
/* rgb */ color: rgb(177, 197, 59);
/* oklch */ color: oklch(78.3% 0.159 117.4);

Tailwind

colors: {
  custom: {
    50: '#ccd67a',
    500: '#b1c53b',
    950: '#000000',
  },
}

SCSS

$custom: #b1c53b;
$custom-light: #ccd67a;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c53b",
  "rgb": {
    "r": 177,
    "g": 197,
    "b": 59
  },
  "hsl": {
    "h": 68.696,
    "s": 54.331,
    "l": 50.196
  },
  "oklch": {
    "l": 0.78313,
    "c": 0.15935,
    "h": 117.4
  },
  "luminance": 0.49595
}

Semantic roles & 50–950 ramp

primary

#B1C53B

secondary

#988FCD

accent

#4ADE5F

background

#FCFDF7

surface

#F9FAEE

border

#D2D3C9

text

#14140A

muted

#82837C

Preview Lab

Preview with #B1C53B

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

Preview Lab → · Contrast checker → · Palette generator →