#FFEF91#FFEF91

#FFEF91 is a very light, moderate yellow. Relative luminance 0.850; OKLCH L 94.5% C 0.116 H 99.8°. Best body text is #000000 at 18.01:1 contrast (WCAG AA passes).

Color values

HEX	#FFEF91
RGB	rgb(255, 239, 145)
HSL	hsl(51, 100%, 78%)
HSV	hsv(51, 43%, 100%)
CMYK	cmyk(0%, 6.3%, 43.1%, 0%)
CIE-LAB	lab(93.90, -7.16, 47.29)
CIE-LCH	lch(93.90, 47.83, 98.61°)
OKLab	oklab(94.49% -0.0198 0.1145)
OKLCH	oklch(94.49% 0.116 99.8)
XYZ	xyz(77.2191, 85.0398, 39.1293)
Luminance	0.8504 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFEF91 #91A1FF

analogous

#FFB891 #FFEF91 #D8FF91

triadic

#FFEF91 #91FFEF #EF91FF

tetradic

#FFEF91 #91FFB8 #91A1FF #FF91D8

square

#FFEF91 #91FFB8 #91A1FF #FF91D8

split-complementary

#FFEF91 #91D8FF #B891FF

monochromatic

#FFDD17 #FFE654 #FFEF91 #FFF8CE #FFFBE0

Accessibility & contrast

On white

1.17

#FFEF91 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.01

#FFEF91 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFEF91

18.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFEF91	#FFFFFF	#000000	##000000
##FFEF91	1.00	1.17	18.01	18.01
#FFFFFF	1.17	1.00	21.00	21.00
#000000	18.01	21.00	1.00	1.00
##000000	18.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA8A

Deuteranopia (green-blind)

#FFF095

Tritanopia (blue-blind)

#FFE3D8

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ffef91;
/* rgb */ color: rgb(255, 239, 145);
/* oklch */ color: oklch(94.5% 0.116 99.8);

Tailwind

colors: {
  custom: {
    50: '#fff4b2',
    500: '#ffef91',
    950: '#000000',
  },
}

SCSS

$custom: #ffef91;
$custom-light: #fff4b2;
$custom-dark: #000000;

JSON

{
  "hex": "#ffef91",
  "rgb": {
    "r": 255,
    "g": 239,
    "b": 145
  },
  "hsl": {
    "h": 51.273,
    "s": 100,
    "l": 78.431
  },
  "oklch": {
    "l": 0.94495,
    "c": 0.11617,
    "h": 99.8
  },
  "luminance": 0.85037
}

Semantic roles & 50–950 ramp

primary

#FFEF91

secondary

#5368E1

accent

#21E600

background

#FFFFFD

surface

#FFFEF8

border

#D7D6D1

text

#181711

muted

#868581

Preview Lab

Preview with #FFEF91

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

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