#EFE55F#EFE55F

#EFE55F is a very light, vivid yellow. Relative luminance 0.752; OKLCH L 90.5% C 0.153 H 105.0°. Best body text is #000000 at 16.04:1 contrast (WCAG AA passes).

Color values

HEX	#EFE55F
RGB	rgb(239, 229, 95)
HSL	hsl(56, 82%, 65%)
HSV	hsv(56, 60%, 94%)
CMYK	cmyk(0%, 4.2%, 60.3%, 6.3%)
CIE-LAB	lab(89.49, -12.66, 64.74)
CIE-LCH	lch(89.49, 65.96, 101.07°)
OKLab	oklab(90.51% -0.0398 0.1482)
OKLCH	oklch(90.51% 0.153 105)
XYZ	xyz(65.6838, 75.2178, 21.8828)
Luminance	0.7522 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFE55F #5F69EF

analogous

#EF9D5F #EFE55F #B1EF5F

triadic

#EFE55F #5FEFE5 #E55FEF

tetradic

#EFE55F #5FEF9D #5F69EF #EF5FB1

square

#EFE55F #5FEF9D #5F69EF #EF5FB1

split-complementary

#EFE55F #5FB1EF #9D5FEF

monochromatic

#C0B413 #E9DC27 #EFE55F #F5EE97 #FAF7CE

Accessibility & contrast

On white

1.31

#EFE55F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.04

#EFE55F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFE55F

16.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFE55F	#FFFFFF	#000000	##000000
##EFE55F	1.00	1.31	16.04	16.04
#FFFFFF	1.31	1.00	21.00	21.00
#000000	16.04	21.00	1.00	1.00
##000000	16.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F7DD50

Deuteranopia (green-blind)

#FBE467

Tritanopia (blue-blind)

#FFD7C8

Achromatopsia (no color)

#E1E1E1

Design tokens & code

CSS

--color: #efe55f;
/* rgb */ color: rgb(239, 229, 95);
/* oklch */ color: oklch(90.5% 0.153 105.0);

Tailwind

colors: {
  custom: {
    50: '#f7ec92',
    500: '#efe55f',
    950: '#000000',
  },
}

SCSS

$custom: #efe55f;
$custom-light: #f7ec92;
$custom-dark: #000000;

JSON

{
  "hex": "#efe55f",
  "rgb": {
    "r": 239,
    "g": 229,
    "b": 95
  },
  "hsl": {
    "h": 55.833,
    "s": 81.818,
    "l": 65.49
  },
  "oklch": {
    "l": 0.90507,
    "c": 0.15341,
    "h": 105
  },
  "luminance": 0.75216
}

Semantic roles & 50–950 ramp

primary

#EFE55F

secondary

#343DBE

accent

#16DE07

background

#FFFEFC

surface

#FFFDF4

border

#D7D5CE

text

#18160D

muted

#86847F

Preview Lab

Preview with #EFE55F

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

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