#EFE57C#EFE57C

#EFE57C is a very light, vivid yellow. Relative luminance 0.758; OKLCH L 90.8% C 0.127 H 103.8°. Best body text is #000000 at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#EFE57C
RGB	rgb(239, 229, 124)
HSL	hsl(55, 78%, 71%)
HSV	hsv(55, 48%, 94%)
CMYK	cmyk(0%, 4.2%, 48.1%, 6.3%)
CIE-LAB	lab(89.79, -10.43, 52.02)
CIE-LCH	lch(89.79, 53.05, 101.34°)
OKLab	oklab(90.84% -0.0303 0.1238)
OKLCH	oklch(90.84% 0.127 103.8)
XYZ	xyz(67.2557, 75.8466, 30.1619)
Luminance	0.7584 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFE57C #7C86EF

analogous

#EFAB7C #EFE57C #BFEF7C

triadic

#EFE57C #7CEFE5 #E57CEF

tetradic

#EFE57C #7CEFAB #7C86EF #EF7CBF

square

#EFE57C #7CEFAB #7C86EF #EF7CBF

split-complementary

#EFE57C #7CBFEF #AB7CEF

monochromatic

#D6C61A #E8DA45 #EFE57C #F6F0B3 #FCFAE4

Accessibility & contrast

On white

1.30

#EFE57C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.17

#EFE57C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFE57C

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFE57C	#FFFFFF	#000000	##000000
##EFE57C	1.00	1.30	16.17	16.17
#FFFFFF	1.30	1.00	21.00	21.00
#000000	16.17	21.00	1.00	1.00
##000000	16.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F5DF73

Deuteranopia (green-blind)

#F9E481

Tritanopia (blue-blind)

#FED9CC

Achromatopsia (no color)

#E2E2E2

Design tokens & code

CSS

--color: #efe57c;
/* rgb */ color: rgb(239, 229, 124);
/* oklch */ color: oklch(90.8% 0.127 103.8);

Tailwind

colors: {
  custom: {
    50: '#f6eda4',
    500: '#efe57c',
    950: '#000000',
  },
}

SCSS

$custom: #efe57c;
$custom-light: #f6eda4;
$custom-dark: #000000;

JSON

{
  "hex": "#efe57c",
  "rgb": {
    "r": 239,
    "g": 229,
    "b": 124
  },
  "hsl": {
    "h": 54.783,
    "s": 78.231,
    "l": 71.176
  },
  "oklch": {
    "l": 0.90835,
    "c": 0.12743,
    "h": 103.8
  },
  "luminance": 0.75845
}

Semantic roles & 50–950 ramp

primary

#EFE57C

secondary

#4652C9

accent

#1DDA0B

background

#FFFEFC

surface

#FFFDF6

border

#D7D5D0

text

#17160F

muted

#858480

Preview Lab

Preview with #EFE57C

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

Preview Lab → · Contrast checker → · Palette generator →