#EFF38B#EFF38B

#EFF38B is a very light, vivid yellow. Relative luminance 0.843; OKLCH L 93.9% C 0.127 H 110.5°. Best body text is #000000 at 17.86:1 contrast (WCAG AA passes).

Color values

HEX	#EFF38B
RGB	rgb(239, 243, 139)
HSL	hsl(62, 81%, 75%)
HSV	hsv(62, 43%, 95%)
CMYK	cmyk(1.6%, 0%, 42.8%, 4.7%)
CIE-LAB	lab(93.59, -15.92, 49.52)
CIE-LCH	lch(93.59, 52.02, 107.82°)
OKLab	oklab(93.92% -0.0447 0.1193)
OKLCH	oklch(93.92% 0.127 110.5)
XYZ	xyz(72.3085, 84.3173, 36.8869)
Luminance	0.8432 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF38B #8F8BF3

analogous

#F3C38B #EFF38B #BBF38B

triadic

#EFF38B #8BEFF3 #F38BEF

tetradic

#EFF38B #8BF3C3 #8F8BF3 #F38BBB

square

#EFF38B #8BF3C3 #8F8BF3 #F38BBB

split-complementary

#EFF38B #8BBBF3 #C38BF3

monochromatic

#E0E81C #E7ED54 #EFF38B #F7F9C2 #FBFCE3

Accessibility & contrast

On white

1.18

#EFF38B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.86

#EFF38B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF38B

17.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF38B	#FFFFFF	#000000	##000000
##EFF38B	1.00	1.18	17.86	17.86
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.86	21.00	1.00	1.00
##000000	17.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB83

Deuteranopia (green-blind)

#FFEE90

Tritanopia (blue-blind)

#FBE8DA

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff38b;
/* rgb */ color: rgb(239, 243, 139);
/* oklch */ color: oklch(93.9% 0.127 110.5);

Tailwind

colors: {
  custom: {
    50: '#f6f7ae',
    500: '#eff38b',
    950: '#000000',
  },
}

SCSS

$custom: #eff38b;
$custom-light: #f6f7ae;
$custom-dark: #000000;

JSON

{
  "hex": "#eff38b",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 139
  },
  "hsl": {
    "h": 62.308,
    "s": 81.25,
    "l": 74.902
  },
  "oklch": {
    "l": 0.93916,
    "c": 0.12739,
    "h": 110.5
  },
  "luminance": 0.84316
}

Semantic roles & 50–950 ramp

primary

#EFF38B

secondary

#5753D0

accent

#08DE10

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFF38B

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

Preview Lab → · Contrast checker → · Palette generator →