#EFDD59#EFDD59

#EFDD59 is a very light, vivid yellow. Relative luminance 0.708; OKLCH L 88.8% C 0.151 H 101.5°. Best body text is #000000 at 15.16:1 contrast (WCAG AA passes).

Color values

HEX	#EFDD59
RGB	rgb(239, 221, 89)
HSL	hsl(53, 82%, 64%)
HSV	hsv(53, 63%, 94%)
CMYK	cmyk(0%, 7.5%, 62.8%, 6.3%)
CIE-LAB	lab(87.38, -9.06, 64.97)
CIE-LCH	lch(87.38, 65.60, 97.94°)
OKLab	oklab(88.81% -0.0302 0.1478)
OKLCH	oklch(88.81% 0.151 101.5)
XYZ	xyz(63.2587, 70.7875, 19.7805)
Luminance	0.7078 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFDD59 #596BEF

analogous

#EF9259 #EFDD59 #B6EF59

triadic

#EFDD59 #59EFDD #DD59EF

tetradic

#EFDD59 #59EF92 #596BEF #EF59B6

square

#EFDD59 #59EF92 #596BEF #EF59B6

split-complementary

#EFDD59 #59B6EF #9259EF

monochromatic

#BCA712 #EAD221 #EFDD59 #F4E891 #FAF4C9

Accessibility & contrast

On white

1.39

#EFDD59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.16

#EFDD59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFDD59

15.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFDD59	#FFFFFF	#000000	##000000
##EFDD59	1.00	1.39	15.16	15.16
#FFFFFF	1.39	1.00	21.00	21.00
#000000	15.16	21.00	1.00	1.00
##000000	15.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0D749

Deuteranopia (green-blind)

#F5DE60

Tritanopia (blue-blind)

#FFCEC1

Achromatopsia (no color)

#DBDBDB

Design tokens & code

CSS

--color: #efdd59;
/* rgb */ color: rgb(239, 221, 89);
/* oklch */ color: oklch(88.8% 0.151 101.5);

Tailwind

colors: {
  custom: {
    50: '#f8e78d',
    500: '#efdd59',
    950: '#000000',
  },
}

SCSS

$custom: #efdd59;
$custom-light: #f8e78d;
$custom-dark: #000000;

JSON

{
  "hex": "#efdd59",
  "rgb": {
    "r": 239,
    "g": 221,
    "b": 89
  },
  "hsl": {
    "h": 52.8,
    "s": 82.418,
    "l": 64.314
  },
  "oklch": {
    "l": 0.88812,
    "c": 0.15088,
    "h": 101.5
  },
  "luminance": 0.70785
}

Semantic roles & 50–950 ramp

primary

#EFDD59

secondary

#3242BA

accent

#21DF07

background

#FFFEFC

surface

#FFFCF4

border

#D7D5CE

text

#18160D

muted

#86847F

Preview Lab

Preview with #EFDD59

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

Preview Lab → · Contrast checker → · Palette generator →