#EFCA57#EFCA57

#EFCA57 is a very light, vivid yellow. Relative luminance 0.613; OKLCH L 85.0% C 0.138 H 91.3°. Best body text is #000000 at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#EFCA57
RGB	rgb(239, 202, 87)
HSL	hsl(45, 83%, 64%)
HSV	hsv(45, 64%, 94%)
CMYK	cmyk(0%, 15.5%, 63.6%, 6.3%)
CIE-LAB	lab(82.53, 0.47, 60.59)
CIE-LCH	lch(82.53, 60.59, 89.56°)
OKLab	oklab(84.97% -0.0031 0.1383)
OKLCH	oklch(84.97% 0.138 91.3)
XYZ	xyz(58.4403, 61.2831, 17.7656)
Luminance	0.6128 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCA57 #577CEF

analogous

#EF7E57 #EFCA57 #C8EF57

triadic

#EFCA57 #57EFCA #CA57EF

tetradic

#EFCA57 #57EF7E #577CEF #EF57C8

square

#EFCA57 #57EF7E #577CEF #EF57C8

split-complementary

#EFCA57 #57C8EF #7E57EF

monochromatic

#BA9112 #EAB81F #EFCA57 #F4DC8F #FAEDC7

Accessibility & contrast

On white

1.58

#EFCA57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.26

#EFCA57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCA57

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCA57	#FFFFFF	#000000	##000000
##EFCA57	1.00	1.58	13.26	13.26
#FFFFFF	1.58	1.00	21.00	21.00
#000000	13.26	21.00	1.00	1.00
##000000	13.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC74A

Deuteranopia (green-blind)

#E8D25C

Tritanopia (blue-blind)

#FFBBB1

Achromatopsia (no color)

#CDCDCD

Design tokens & code

CSS

--color: #efca57;
/* rgb */ color: rgb(239, 202, 87);
/* oklch */ color: oklch(85.0% 0.138 91.3);

Tailwind

colors: {
  custom: {
    50: '#f8d98b',
    500: '#efca57',
    950: '#000000',
  },
}

SCSS

$custom: #efca57;
$custom-light: #f8d98b;
$custom-dark: #000000;

JSON

{
  "hex": "#efca57",
  "rgb": {
    "r": 239,
    "g": 202,
    "b": 87
  },
  "hsl": {
    "h": 45.395,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.84967,
    "c": 0.13828,
    "h": 91.3
  },
  "luminance": 0.6128
}

Semantic roles & 50–950 ramp

primary

#EFCA57

secondary

#3152B9

accent

#3BDF06

background

#FFFEFC

surface

#FFFBF4

border

#D7D4CE

text

#18140C

muted

#86837F

Preview Lab

Preview with #EFCA57

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

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