#EFF188#EFF188

#EFF188 is a very light, vivid yellow. Relative luminance 0.830; OKLCH L 93.5% C 0.128 H 109.6°. Best body text is #000000 at 17.61:1 contrast (WCAG AA passes).

Color values

HEX	#EFF188
RGB	rgb(239, 241, 136)
HSL	hsl(61, 79%, 74%)
HSV	hsv(61, 44%, 95%)
CMYK	cmyk(0.8%, 0%, 43.6%, 5.5%)
CIE-LAB	lab(93.03, -15.24, 50.27)
CIE-LCH	lch(93.03, 52.53, 106.86°)
OKLab	oklab(93.46% -0.043 0.1208)
OKLCH	oklch(93.46% 0.128 109.6)
XYZ	xyz(71.4971, 83.0404, 35.5498)
Luminance	0.8304 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF188 #8A88F1

analogous

#F1BF88 #EFF188 #BBF188

triadic

#EFF188 #88EFF1 #F188EF

tetradic

#EFF188 #88F1BF #8A88F1 #F188BB

square

#EFF188 #88F1BF #8A88F1 #F188BB

split-complementary

#EFF188 #88BBF1 #BF88F1

monochromatic

#E0E41B #E8EB51 #EFF188 #F6F7BF #FBFCE4

Accessibility & contrast

On white

1.19

#EFF188 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.61

#EFF188 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF188

17.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF188	#FFFFFF	#000000	##000000
##EFF188	1.00	1.19	17.61	17.61
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.61	21.00	1.00	1.00
##000000	17.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE97F

Deuteranopia (green-blind)

#FFED8D

Tritanopia (blue-blind)

#FCE6D8

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #eff188;
/* rgb */ color: rgb(239, 241, 136);
/* oklch */ color: oklch(93.5% 0.128 109.6);

Tailwind

colors: {
  custom: {
    50: '#f6f5ac',
    500: '#eff188',
    950: '#000000',
  },
}

SCSS

$custom: #eff188;
$custom-light: #f6f5ac;
$custom-dark: #000000;

JSON

{
  "hex": "#eff188",
  "rgb": {
    "r": 239,
    "g": 241,
    "b": 136
  },
  "hsl": {
    "h": 61.143,
    "s": 78.947,
    "l": 73.922
  },
  "oklch": {
    "l": 0.93461,
    "c": 0.12819,
    "h": 109.6
  },
  "luminance": 0.83039
}

Semantic roles & 50–950 ramp

primary

#EFF188

secondary

#5350CD

accent

#0ADB0E

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFF188

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

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