#B3CA39#B3CA39

#B3CA39 is a light, vivid yellow. Relative luminance 0.521; OKLCH L 79.6% C 0.166 H 118.3°. Best body text is #000000 at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#B3CA39
RGB	rgb(179, 202, 57)
HSL	hsl(70, 58%, 51%)
HSV	hsv(70, 72%, 79%)
CMYK	cmyk(11.4%, 0%, 71.8%, 20.8%)
CIE-LAB	lab(77.35, -26.29, 65.60)
CIE-LCH	lch(77.35, 70.67, 111.84°)
OKLab	oklab(79.58% -0.0784 0.1458)
OKLCH	oklch(79.58% 0.166 118.3)
XYZ	xyz(40.4503, 52.1205, 11.7994)
Luminance	0.5212 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3CA39 #5039CA

analogous

#CA9839 #B3CA39 #6ACA39

triadic

#B3CA39 #39B3CA #CA39B3

tetradic

#B3CA39 #39CA98 #5039CA #CA396A

square

#B3CA39 #39CA98 #5039CA #CA396A

split-complementary

#B3CA39 #396ACA #9839CA

monochromatic

#5F6C1D #8A9C2A #B3CA39 #C6D769 #D8E49A

Accessibility & contrast

On white

1.84

#B3CA39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.42

#B3CA39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B3CA39

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3CA39	#FFFFFF	#000000	##000000
##B3CA39	1.00	1.84	11.42	11.42
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.42	21.00	1.00	1.00
##000000	11.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D7BF1E

Deuteranopia (green-blind)

#D5C045

Tritanopia (blue-blind)

#BEBFAE

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #b3ca39;
/* rgb */ color: rgb(179, 202, 57);
/* oklch */ color: oklch(79.6% 0.166 118.3);

Tailwind

colors: {
  custom: {
    50: '#cdda79',
    500: '#b3ca39',
    950: '#000000',
  },
}

SCSS

$custom: #b3ca39;
$custom-light: #cdda79;
$custom-dark: #000000;

JSON

{
  "hex": "#b3ca39",
  "rgb": {
    "r": 179,
    "g": 202,
    "b": 57
  },
  "hsl": {
    "h": 69.517,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.79577,
    "c": 0.16557,
    "h": 118.3
  },
  "luminance": 0.5212
}

Semantic roles & 50–950 ramp

primary

#B3CA39

secondary

#3D3275

accent

#47E15F

background

#FEFEFB

surface

#FBFBF2

border

#D4D4CC

text

#14140A

muted

#83837D

Preview Lab

Preview with #B3CA39

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

Preview Lab → · Contrast checker → · Palette generator →