#BBC739#BBC739

#BBC739 is a light, vivid yellow. Relative luminance 0.517; OKLCH L 79.5% C 0.160 H 114.3°. Best body text is #000000 at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#BBC739
RGB	rgb(187, 199, 57)
HSL	hsl(65, 56%, 50%)
HSV	hsv(65, 71%, 78%)
CMYK	cmyk(6%, 0%, 71.4%, 22%)
CIE-LAB	lab(77.11, -21.52, 65.56)
CIE-LCH	lch(77.11, 69.00, 108.17°)
OKLab	oklab(79.53% -0.0656 0.1455)
OKLCH	oklch(79.53% 0.16 114.3)
XYZ	xyz(41.6566, 51.7078, 11.6563)
Luminance	0.5171 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BBC739 #4539C7

analogous

#C78C39 #BBC739 #74C739

triadic

#BBC739 #39BBC7 #C739BB

tetradic

#BBC739 #39C78C #4539C7 #C73974

square

#BBC739 #39C78C #4539C7 #C73974

split-complementary

#BBC739 #3974C7 #8C39C7

monochromatic

#62681D #8F982B #BBC739 #CBD469 #DCE298

Accessibility & contrast

On white

1.85

#BBC739 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.34

#BBC739 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #BBC739

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BBC739	#FFFFFF	#000000	##000000
##BBC739	1.00	1.85	11.34	11.34
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.34	21.00	1.00	1.00
##000000	11.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BD1F

Deuteranopia (green-blind)

#D5C044

Tritanopia (blue-blind)

#C7BBAB

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #bbc739;
/* rgb */ color: rgb(187, 199, 57);
/* oklch */ color: oklch(79.5% 0.160 114.3);

Tailwind

colors: {
  custom: {
    50: '#d3d779',
    500: '#bbc739',
    950: '#000000',
  },
}

SCSS

$custom: #bbc739;
$custom-light: #d3d779;
$custom-dark: #000000;

JSON

{
  "hex": "#bbc739",
  "rgb": {
    "r": 187,
    "g": 199,
    "b": 57
  },
  "hsl": {
    "h": 65.07,
    "s": 55.906,
    "l": 50.196
  },
  "oklch": {
    "l": 0.79525,
    "c": 0.15962,
    "h": 114.3
  },
  "luminance": 0.51707
}

Semantic roles & 50–950 ramp

primary

#BBC739

secondary

#373272

accent

#49DF55

background

#FEFEFB

surface

#FBFBF2

border

#D4D4CC

text

#15140A

muted

#84837D

Preview Lab

Preview with #BBC739

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

Preview Lab → · Contrast checker → · Palette generator →