#B1BD21#B1BD21

#B1BD21 is a light, vivid yellow. Relative luminance 0.459; OKLCH L 76.4% C 0.164 H 114.4°. Best body text is #000000 at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#B1BD21
RGB	rgb(177, 189, 33)
HSL	hsl(65, 70%, 44%)
HSV	hsv(65, 83%, 74%)
CMYK	cmyk(6.3%, 0%, 82.5%, 25.9%)
CIE-LAB	lab(73.45, -21.78, 69.22)
CIE-LCH	lch(73.45, 72.56, 107.47°)
OKLab	oklab(76.37% -0.0677 0.1495)
OKLCH	oklch(76.37% 0.164 114.4)
XYZ	xyz(36.6047, 45.8528, 8.3608)
Luminance	0.4585 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1BD21 #2D21BD

analogous

#BD7B21 #B1BD21 #63BD21

triadic

#B1BD21 #21B1BD #BD21B1

tetradic

#B1BD21 #21BD7B #2D21BD #BD2163

square

#B1BD21 #21BD7B #2D21BD #BD2163

split-complementary

#B1BD21 #2163BD #7B21BD

monochromatic

#4F550F #808918 #B1BD21 #D1DD3E #DDE672

Accessibility & contrast

On white

2.06

#B1BD21 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.17

#B1BD21 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1BD21

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1BD21	#FFFFFF	#000000	##000000
##B1BD21	1.00	2.06	10.17	10.17
#FFFFFF	2.06	1.00	21.00	21.00
#000000	10.17	21.00	1.00	1.00
##000000	10.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CBB300

Deuteranopia (green-blind)

#CBB632

Tritanopia (blue-blind)

#BDB1A1

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #b1bd21;
/* rgb */ color: rgb(177, 189, 33);
/* oklch */ color: oklch(76.4% 0.164 114.4);

Tailwind

colors: {
  custom: {
    50: '#ccd06d',
    500: '#b1bd21',
    950: '#000000',
  },
}

SCSS

$custom: #b1bd21;
$custom-light: #ccd06d;
$custom-dark: #000000;

JSON

{
  "hex": "#b1bd21",
  "rgb": {
    "r": 177,
    "g": 189,
    "b": 33
  },
  "hsl": {
    "h": 64.615,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.76368,
    "c": 0.16411,
    "h": 114.4
  },
  "luminance": 0.45852
}

Semantic roles & 50–950 ramp

primary

#B1BD21

secondary

#746DCD

accent

#3BED48

background

#FDFCF7

surface

#FAF9ED

border

#D3D2C8

text

#141408

muted

#83827B

Preview Lab

Preview with #B1BD21

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

Preview Lab → · Contrast checker → · Palette generator →