#B1CA15#B1CA15

#B1CA15 is a light, vivid yellow. Relative luminance 0.516; OKLCH L 79.3% C 0.181 H 118.4°. Best body text is #000000 at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#B1CA15
RGB	rgb(177, 202, 21)
HSL	hsl(68, 81%, 44%)
HSV	hsv(68, 90%, 79%)
CMYK	cmyk(12.4%, 0%, 89.6%, 20.8%)
CIE-LAB	lab(77.07, -28.37, 74.64)
CIE-LCH	lch(77.07, 79.85, 110.81°)
OKLab	oklab(79.27% -0.0864 0.1595)
OKLCH	oklch(79.27% 0.181 118.4)
XYZ	xyz(39.3884, 51.6427, 8.6024)
Luminance	0.5164 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1CA15 #2E15CA

analogous

#CA8815 #B1CA15 #56CA15

triadic

#B1CA15 #15B1CA #CA15B1

tetradic

#B1CA15 #15CA88 #2E15CA #CA1556

square

#B1CA15 #15CA88 #2E15CA #CA1556

split-complementary

#B1CA15 #1556CA #8815CA

monochromatic

#505B09 #80930F #B1CA15 #D0EA32 #DDEF6A

Accessibility & contrast

On white

1.85

#B1CA15 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.33

#B1CA15 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1CA15

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1CA15	#FFFFFF	#000000	##000000
##B1CA15	1.00	1.85	11.33	11.33
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.33	21.00	1.00	1.00
##000000	11.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8BE00

Deuteranopia (green-blind)

#D5BF2E

Tritanopia (blue-blind)

#BCBEAC

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #b1ca15;
/* rgb */ color: rgb(177, 202, 21);
/* oklch */ color: oklch(79.3% 0.181 118.4);

Tailwind

colors: {
  custom: {
    50: '#cdda6b',
    500: '#b1ca15',
    950: '#000000',
  },
}

SCSS

$custom: #b1ca15;
$custom-light: #cdda6b;
$custom-dark: #000000;

JSON

{
  "hex": "#b1ca15",
  "rgb": {
    "r": 177,
    "g": 202,
    "b": 21
  },
  "hsl": {
    "h": 68.287,
    "s": 81.166,
    "l": 43.725
  },
  "oklch": {
    "l": 0.79265,
    "c": 0.18142,
    "h": 118.4
  },
  "luminance": 0.51642
}

Semantic roles & 50–950 ramp

primary

#B1CA15

secondary

#271C67

accent

#30F84C

background

#FEFEFB

surface

#FBFBF1

border

#D4D4CB

text

#141408

muted

#83837D

Preview Lab

Preview with #B1CA15

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

Preview Lab → · Contrast checker → · Palette generator →