#FBF37B#FBF37B

#FBF37B is a very light, vivid yellow. Relative luminance 0.860; OKLCH L 94.7% C 0.142 H 105.3°. Best body text is #000000 at 18.21:1 contrast (WCAG AA passes).

Color values

HEX	#FBF37B
RGB	rgb(251, 243, 123)
HSL	hsl(56, 94%, 73%)
HSV	hsv(56, 51%, 98%)
CMYK	cmyk(0%, 3.2%, 51%, 1.6%)
CIE-LAB	lab(94.33, -12.68, 58.13)
CIE-LCH	lch(94.33, 59.50, 102.31°)
OKLab	oklab(94.67% -0.0376 0.1369)
OKLCH	oklch(94.67% 0.142 105.3)
XYZ	xyz(75.4115, 86.0427, 31.3705)
Luminance	0.8604 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FBF37B #7B83FB

analogous

#FBB37B #FBF37B #C3FB7B

triadic

#FBF37B #7BFBF3 #F37BFB

tetradic

#FBF37B #7BFBB3 #7B83FB #FB7BC3

square

#FBF37B #7BFBB3 #7B83FB #FB7BC3

split-complementary

#FBF37B #7BC3FB #B37BFB

monochromatic

#F4E507 #F9EE40 #FBF37B #FDF8B6 #FEFCE1

Accessibility & contrast

On white

1.15

#FBF37B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.21

#FBF37B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FBF37B

18.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FBF37B	#FFFFFF	#000000	##000000
##FBF37B	1.00	1.15	18.21	18.21
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.21	21.00	1.00	1.00
##000000	18.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC70

Deuteranopia (green-blind)

#FFF181

Tritanopia (blue-blind)

#FFE6D8

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #fbf37b;
/* rgb */ color: rgb(251, 243, 123);
/* oklch */ color: oklch(94.7% 0.142 105.3);

Tailwind

colors: {
  custom: {
    50: '#fff6a4',
    500: '#fbf37b',
    950: '#000000',
  },
}

SCSS

$custom: #fbf37b;
$custom-light: #fff6a4;
$custom-dark: #000000;

JSON

{
  "hex": "#fbf37b",
  "rgb": {
    "r": 251,
    "g": 243,
    "b": 123
  },
  "hsl": {
    "h": 56.25,
    "s": 94.118,
    "l": 73.333
  },
  "oklch": {
    "l": 0.94673,
    "c": 0.14194,
    "h": 105.3
  },
  "luminance": 0.8604
}

Semantic roles & 50–950 ramp

primary

#FBF37B

secondary

#424BD8

accent

#0EE600

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#18170F

muted

#868580

Preview Lab

Preview with #FBF37B

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

Preview Lab → · Contrast checker → · Palette generator →