#B3CA21#B3CA21

#B3CA21 is a light, vivid yellow. Relative luminance 0.519; OKLCH L 79.5% C 0.177 H 117.9°. Best body text is #000000 at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#B3CA21
RGB	rgb(179, 202, 33)
HSL	hsl(68, 72%, 46%)
HSV	hsv(68, 84%, 79%)
CMYK	cmyk(11.4%, 0%, 83.7%, 20.8%)
CIE-LAB	lab(77.24, -27.25, 72.51)
CIE-LCH	lch(77.24, 77.46, 110.60°)
OKLab	oklab(79.45% -0.0828 0.1565)
OKLCH	oklch(79.45% 0.177 117.9)
XYZ	xyz(39.9865, 51.9350, 9.3565)
Luminance	0.5193 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3CA21 #3821CA

analogous

#CA8C21 #B3CA21 #5ECA21

triadic

#B3CA21 #21B3CA #CA21B3

tetradic

#B3CA21 #21CA8C #3821CA #CA215E

square

#B3CA21 #21CA8C #3821CA #CA215E

split-complementary

#B3CA21 #215ECA #8C21CA

monochromatic

#566110 #849518 #B3CA21 #CCE147 #DBEA7C

Accessibility & contrast

On white

1.84

#B3CA21 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.39

#B3CA21 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B3CA21

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3CA21	#FFFFFF	#000000	##000000
##B3CA21	1.00	1.84	11.39	11.39
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.39	21.00	1.00	1.00
##000000	11.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8BE00

Deuteranopia (green-blind)

#D6C034

Tritanopia (blue-blind)

#BEBEAC

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #b3ca21;
/* rgb */ color: rgb(179, 202, 33);
/* oklch */ color: oklch(79.5% 0.177 117.9);

Tailwind

colors: {
  custom: {
    50: '#ceda6f',
    500: '#b3ca21',
    950: '#000000',
  },
}

SCSS

$custom: #b3ca21;
$custom-light: #ceda6f;
$custom-dark: #000000;

JSON

{
  "hex": "#b3ca21",
  "rgb": {
    "r": 179,
    "g": 202,
    "b": 33
  },
  "hsl": {
    "h": 68.166,
    "s": 71.915,
    "l": 46.078
  },
  "oklch": {
    "l": 0.79452,
    "c": 0.17708,
    "h": 117.9
  },
  "luminance": 0.51935
}

Semantic roles & 50–950 ramp

primary

#B3CA21

secondary

#2D246C

accent

#39EF52

background

#FEFEFB

surface

#FBFBF1

border

#D4D4CB

text

#141408

muted

#83837D

Preview Lab

Preview with #B3CA21

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

Preview Lab → · Contrast checker → · Palette generator →