#B1C538#B1C538

#B1C538 is a light, vivid yellow. Relative luminance 0.496; OKLCH L 78.3% C 0.161 H 117.4°. Best body text is #000000 at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#B1C538
RGB	rgb(177, 197, 56)
HSL	hsl(69, 56%, 50%)
HSV	hsv(69, 72%, 77%)
CMYK	cmyk(10.2%, 0%, 71.6%, 22.7%)
CIE-LAB	lab(75.80, -24.75, 64.39)
CIE-LCH	lch(75.80, 68.99, 111.02°)
OKLab	oklab(78.29% -0.0741 0.1432)
OKLCH	oklch(78.29% 0.161 117.4)
XYZ	xyz(38.8124, 49.5656, 11.2631)
Luminance	0.4956 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1C538 #4C38C5

analogous

#C59338 #B1C538 #6AC538

triadic

#B1C538 #38B1C5 #C538B1

tetradic

#B1C538 #38C593 #4C38C5 #C5386A

square

#B1C538 #38C593 #4C38C5 #C5386A

split-complementary

#B1C538 #386AC5 #9338C5

monochromatic

#5B661D #86952A #B1C538 #C4D467 #D7E196

Accessibility & contrast

On white

1.92

#B1C538 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.91

#B1C538 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1C538

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1C538	#FFFFFF	#000000	##000000
##B1C538	1.00	1.92	10.91	10.91
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.91	21.00	1.00	1.00
##000000	10.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2BA1E

Deuteranopia (green-blind)

#D0BC44

Tritanopia (blue-blind)

#BCBAAA

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #b1c538;
/* rgb */ color: rgb(177, 197, 56);
/* oklch */ color: oklch(78.3% 0.161 117.4);

Tailwind

colors: {
  custom: {
    50: '#ccd678',
    500: '#b1c538',
    950: '#000000',
  },
}

SCSS

$custom: #b1c538;
$custom-light: #ccd678;
$custom-dark: #000000;

JSON

{
  "hex": "#b1c538",
  "rgb": {
    "r": 177,
    "g": 197,
    "b": 56
  },
  "hsl": {
    "h": 68.511,
    "s": 55.731,
    "l": 49.608
  },
  "oklch": {
    "l": 0.78292,
    "c": 0.16123,
    "h": 117.4
  },
  "luminance": 0.49565
}

Semantic roles & 50–950 ramp

primary

#B1C538

secondary

#958CCD

accent

#49DF5E

background

#FCFDF7

surface

#F9FAEE

border

#D2D3C9

text

#141409

muted

#82837B

Preview Lab

Preview with #B1C538

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

Preview Lab → · Contrast checker → · Palette generator →