#FFEF5A#FFEF5A

#FFEF5A is a very light, vivid yellow. Relative luminance 0.837; OKLCH L 93.9% C 0.165 H 103.2°. Best body text is #000000 at 17.75:1 contrast (WCAG AA passes).

Color values

HEX	#FFEF5A
RGB	rgb(255, 239, 90)
HSL	hsl(54, 100%, 68%)
HSV	hsv(54, 65%, 100%)
CMYK	cmyk(0%, 6.3%, 64.7%, 0%)
CIE-LAB	lab(93.33, -11.39, 71.26)
CIE-LCH	lch(93.33, 72.16, 99.08°)
OKLab	oklab(93.86% -0.0376 0.1609)
OKLCH	oklch(93.86% 0.165 103.2)
XYZ	xyz(73.9549, 83.7341, 21.9376)
Luminance	0.8373 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFEF5A #5A6AFF

analogous

#FF9D5A #FFEF5A #BCFF5A

triadic

#FFEF5A #5AFFEF #EF5AFF

tetradic

#FFEF5A #5AFF9D #5A6AFF #FF5ABC

square

#FFEF5A #5AFF9D #5A6AFF #FF5ABC

split-complementary

#FFEF5A #5ABCFF #9D5AFF

monochromatic

#DFC900 #FFE91D #FFEF5A #FFF597 #FFFBD4

Accessibility & contrast

On white

1.18

#FFEF5A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.75

#FFEF5A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFEF5A

17.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFEF5A	#FFFFFF	#000000	##000000
##FFEF5A	1.00	1.18	17.75	17.75
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.75	21.00	1.00	1.00
##000000	17.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE847

Deuteranopia (green-blind)

#FFEF63

Tritanopia (blue-blind)

#FFDFD0

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #ffef5a;
/* rgb */ color: rgb(255, 239, 90);
/* oklch */ color: oklch(93.9% 0.165 103.2);

Tailwind

colors: {
  custom: {
    50: '#fff38f',
    500: '#ffef5a',
    950: '#000000',
  },
}

SCSS

$custom: #ffef5a;
$custom-light: #fff38f;
$custom-dark: #000000;

JSON

{
  "hex": "#ffef5a",
  "rgb": {
    "r": 255,
    "g": 239,
    "b": 90
  },
  "hsl": {
    "h": 54.182,
    "s": 100,
    "l": 67.647
  },
  "oklch": {
    "l": 0.93864,
    "c": 0.16519,
    "h": 103.2
  },
  "luminance": 0.83731
}

Semantic roles & 50–950 ramp

primary

#FFEF5A

secondary

#2637D7

accent

#16E600

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FFEF5A

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

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