#EFCF5B#EFCF5B

#EFCF5B is a very light, vivid yellow. Relative luminance 0.637; OKLCH L 86.0% C 0.138 H 93.8°. Best body text is #000000 at 13.75:1 contrast (WCAG AA passes).

Color values

HEX	#EFCF5B
RGB	rgb(239, 207, 91)
HSL	hsl(47, 82%, 65%)
HSV	hsv(47, 62%, 94%)
CMYK	cmyk(0%, 13.4%, 61.9%, 6.3%)
CIE-LAB	lab(83.83, -1.85, 60.26)
CIE-LCH	lch(83.83, 60.29, 91.76°)
OKLab	oklab(86% -0.0093 0.1381)
OKLCH	oklch(86% 0.138 93.8)
XYZ	xyz(59.8005, 63.7347, 19.0477)
Luminance	0.6373 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCF5B #5B7BEF

analogous

#EF855B #EFCF5B #C5EF5B

triadic

#EFCF5B #5BEFCF #CF5BEF

tetradic

#EFCF5B #5BEF85 #5B7BEF #EF5BC5

square

#EFCF5B #5BEF85 #5B7BEF #EF5BC5

split-complementary

#EFCF5B #5BC5EF #855BEF

monochromatic

#BD9812 #EABF23 #EFCF5B #F4DF93 #FAF0CB

Accessibility & contrast

On white

1.53

#EFCF5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.75

#EFCF5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCF5B

13.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCF5B	#FFFFFF	#000000	##000000
##EFCF5B	1.00	1.53	13.75	13.75
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.75	21.00	1.00	1.00
##000000	13.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3CB4E

Deuteranopia (green-blind)

#EBD560

Tritanopia (blue-blind)

#FFC0B6

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #efcf5b;
/* rgb */ color: rgb(239, 207, 91);
/* oklch */ color: oklch(86.0% 0.138 93.8);

Tailwind

colors: {
  custom: {
    50: '#f8dd8e',
    500: '#efcf5b',
    950: '#000000',
  },
}

SCSS

$custom: #efcf5b;
$custom-light: #f8dd8e;
$custom-dark: #000000;

JSON

{
  "hex": "#efcf5b",
  "rgb": {
    "r": 239,
    "g": 207,
    "b": 91
  },
  "hsl": {
    "h": 47.027,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.86002,
    "c": 0.13841,
    "h": 93.8
  },
  "luminance": 0.63732
}

Semantic roles & 50–950 ramp

primary

#EFCF5B

secondary

#3350BC

accent

#36DF07

background

#FFFEFC

surface

#FFFCF4

border

#D7D5CE

text

#18150D

muted

#86847F

Preview Lab

Preview with #EFCF5B

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

Preview Lab → · Contrast checker → · Palette generator →