#EFF3CB#EFF3CB

#EFF3CB is a very light, muted yellow. Relative luminance 0.868; OKLCH L 95.1% C 0.052 H 112.0°. Best body text is #000000 at 18.35:1 contrast (WCAG AA passes).

Color values

HEX	#EFF3CB
RGB	rgb(239, 243, 203)
HSL	hsl(66, 63%, 87%)
HSV	hsv(66, 16%, 95%)
CMYK	cmyk(1.6%, 0%, 16.5%, 4.7%)
CIE-LAB	lab(94.64, -7.92, 18.88)
CIE-LCH	lch(94.64, 20.48, 112.76°)
OKLab	oklab(95.09% -0.0196 0.0486)
OKLCH	oklch(95.09% 0.052 112)
XYZ	xyz(78.4257, 86.7642, 69.1040)
Luminance	0.8676 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF3CB #CFCBF3

analogous

#F3E3CB #EFF3CB #DBF3CB

triadic

#EFF3CB #CBEFF3 #F3CBEF

tetradic

#EFF3CB #CBF3E3 #CFCBF3 #F3CBDB

square

#EFF3CB #CBF3E3 #CFCBF3 #F3CBDB

split-complementary

#EFF3CB #CBDBF3 #E3CBF3

monochromatic

#D0DC68 #E0E899 #EFF3CB #F7F9E6 #F7F9E6

Accessibility & contrast

On white

1.14

#EFF3CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.35

#EFF3CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF3CB

18.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF3CB	#FFFFFF	#000000	##000000
##EFF3CB	1.00	1.14	18.35	18.35
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.35	21.00	1.00	1.00
##000000	18.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FAEFC9

Deuteranopia (green-blind)

#FAF0CC

Tritanopia (blue-blind)

#F4EEE8

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #eff3cb;
/* rgb */ color: rgb(239, 243, 203);
/* oklch */ color: oklch(95.1% 0.052 112.0);

Tailwind

colors: {
  custom: {
    50: '#f4f7db',
    500: '#eff3cb',
    950: '#000000',
  },
}

SCSS

$custom: #eff3cb;
$custom-light: #f4f7db;
$custom-dark: #000000;

JSON

{
  "hex": "#eff3cb",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 203
  },
  "hsl": {
    "h": 66,
    "s": 62.5,
    "l": 87.451
  },
  "oklch": {
    "l": 0.95094,
    "c": 0.05238,
    "h": 112
  },
  "luminance": 0.86764
}

Semantic roles & 50–950 ramp

primary

#EFF3CB

secondary

#968FD3

accent

#1BCA2D

background

#FFFFFE

surface

#FEFEFB

border

#D6D6D4

text

#171715

muted

#858584

Preview Lab

Preview with #EFF3CB

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

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