#EFF37D#EFF37D

#EFF37D is a very light, vivid yellow. Relative luminance 0.839; OKLCH L 93.7% C 0.141 H 110.6°. Best body text is #000000 at 17.79:1 contrast (WCAG AA passes).

Color values

HEX	#EFF37D
RGB	rgb(239, 243, 125)
HSL	hsl(62, 83%, 72%)
HSV	hsv(62, 49%, 95%)
CMYK	cmyk(1.6%, 0%, 48.6%, 4.7%)
CIE-LAB	lab(93.42, -17.23, 55.91)
CIE-LCH	lch(93.42, 58.50, 107.13°)
OKLab	oklab(93.73% -0.0497 0.1324)
OKLCH	oklch(93.73% 0.141 110.6)
XYZ	xyz(71.3503, 83.9341, 31.8403)
Luminance	0.8393 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF37D #817DF3

analogous

#F3BC7D #EFF37D #B4F37D

triadic

#EFF37D #7DEFF3 #F37DEF

tetradic

#EFF37D #7DF3BC #817DF3 #F37DB4

square

#EFF37D #7DF3BC #817DF3 #F37DB4

split-complementary

#EFF37D #7DB4F3 #BC7DF3

monochromatic

#DAE115 #E8EE45 #EFF37D #F6F8B5 #FCFCE3

Accessibility & contrast

On white

1.18

#EFF37D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.79

#EFF37D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF37D

17.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF37D	#FFFFFF	#000000	##000000
##EFF37D	1.00	1.18	17.79	17.79
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.79	21.00	1.00	1.00
##000000	17.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA72

Deuteranopia (green-blind)

#FFEE83

Tritanopia (blue-blind)

#FDE7D8

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff37d;
/* rgb */ color: rgb(239, 243, 125);
/* oklch */ color: oklch(93.7% 0.141 110.6);

Tailwind

colors: {
  custom: {
    50: '#f6f6a5',
    500: '#eff37d',
    950: '#000000',
  },
}

SCSS

$custom: #eff37d;
$custom-light: #f6f6a5;
$custom-dark: #000000;

JSON

{
  "hex": "#eff37d",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 125
  },
  "hsl": {
    "h": 62.034,
    "s": 83.099,
    "l": 72.157
  },
  "oklch": {
    "l": 0.9373,
    "c": 0.1414,
    "h": 110.6
  },
  "luminance": 0.83933
}

Semantic roles & 50–950 ramp

primary

#EFF37D

secondary

#4B46CE

accent

#06E00D

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF37D

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

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