#B1C83B#B1C83B

#B1C83B is a light, vivid yellow. Relative luminance 0.510; OKLCH L 79.0% C 0.163 H 118.4°. Best body text is #000000 at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#B1C83B
RGB	rgb(177, 200, 59)
HSL	hsl(70, 56%, 51%)
HSV	hsv(70, 71%, 78%)
CMYK	cmyk(11.5%, 0%, 70.5%, 21.6%)
CIE-LAB	lab(76.66, -26.04, 64.17)
CIE-LCH	lch(76.66, 69.25, 112.09°)
OKLab	oklab(78.99% -0.0774 0.1432)
OKLCH	oklch(78.99% 0.163 118.4)
XYZ	xyz(39.5760, 50.9718, 11.8905)
Luminance	0.5097 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C83B #523BC8

analogous

#C8983B #B1C83B #6AC83B

triadic

#B1C83B #3BB1C8 #C83BB1

tetradic

#B1C83B #3BC898 #523BC8 #C83B6A

square

#B1C83B #3BC898 #523BC8 #C83B6A

split-complementary

#B1C83B #3B6AC8 #983BC8

monochromatic

#5E6B1E #889A2B #B1C83B #C4D56B #D7E39B

Accessibility & contrast

On white

1.88

#B1C83B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.19

#B1C83B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C83B

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C83B	#FFFFFF	#000000	##000000
##B1C83B	1.00	1.88	11.19	11.19
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.19	21.00	1.00	1.00
##000000	11.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BD23

Deuteranopia (green-blind)

#D3BE46

Tritanopia (blue-blind)

#BBBDAC

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #b1c83b;
/* rgb */ color: rgb(177, 200, 59);
/* oklch */ color: oklch(79.0% 0.163 118.4);

Tailwind

colors: {
  custom: {
    50: '#ccd87a',
    500: '#b1c83b',
    950: '#000000',
  },
}

SCSS

$custom: #b1c83b;
$custom-light: #ccd87a;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c83b",
  "rgb": {
    "r": 177,
    "g": 200,
    "b": 59
  },
  "hsl": {
    "h": 69.787,
    "s": 56.175,
    "l": 50.784
  },
  "oklch": {
    "l": 0.78989,
    "c": 0.16278,
    "h": 118.4
  },
  "luminance": 0.50971
}

Semantic roles & 50–950 ramp

primary

#B1C83B

secondary

#3D3374

accent

#48DF61

background

#FEFEFB

surface

#FBFBF2

border

#D4D4CC

text

#14140A

muted

#83837D

Preview Lab

Preview with #B1C83B

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

Preview Lab → · Contrast checker → · Palette generator →