#EFE581#EFE581

#EFE581 is a very light, vivid yellow. Relative luminance 0.760; OKLCH L 90.9% C 0.122 H 103.5°. Best body text is #000000 at 16.19:1 contrast (WCAG AA passes).

Color values

HEX	#EFE581
RGB	rgb(239, 229, 129)
HSL	hsl(55, 77%, 72%)
HSV	hsv(55, 46%, 94%)
CMYK	cmyk(0%, 4.2%, 46%, 6.3%)
CIE-LAB	lab(89.85, -9.97, 49.71)
CIE-LCH	lch(89.85, 50.70, 101.35°)
OKLab	oklab(90.9% -0.0285 0.119)
OKLCH	oklch(90.9% 0.122 103.5)
XYZ	xyz(67.5800, 75.9763, 31.8696)
Luminance	0.7597 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFE581 #818BEF

analogous

#EFAE81 #EFE581 #C2EF81

triadic

#EFE581 #81EFE5 #E581EF

tetradic

#EFE581 #81EFAE #818BEF #EF81C2

square

#EFE581 #81EFAE #818BEF #EF81C2

split-complementary

#EFE581 #81C2EF #AE81EF

monochromatic

#DAC91C #E8DA4B #EFE581 #F6F0B7 #FCF9E4

Accessibility & contrast

On white

1.30

#EFE581 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.19

#EFE581 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFE581

16.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFE581	#FFFFFF	#000000	##000000
##EFE581	1.00	1.30	16.19	16.19
#FFFFFF	1.30	1.00	21.00	21.00
#000000	16.19	21.00	1.00	1.00
##000000	16.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F5DF79

Deuteranopia (green-blind)

#F8E485

Tritanopia (blue-blind)

#FDD9CD

Achromatopsia (no color)

#E2E2E2

Design tokens & code

CSS

--color: #efe581;
/* rgb */ color: rgb(239, 229, 129);
/* oklch */ color: oklch(90.9% 0.122 103.5);

Tailwind

colors: {
  custom: {
    50: '#f6eda7',
    500: '#efe581',
    950: '#000000',
  },
}

SCSS

$custom: #efe581;
$custom-light: #f6eda7;
$custom-dark: #000000;

JSON

{
  "hex": "#efe581",
  "rgb": {
    "r": 239,
    "g": 229,
    "b": 129
  },
  "hsl": {
    "h": 54.545,
    "s": 77.465,
    "l": 72.157
  },
  "oklch": {
    "l": 0.90902,
    "c": 0.12242,
    "h": 103.5
  },
  "luminance": 0.75974
}

Semantic roles & 50–950 ramp

primary

#EFE581

secondary

#4B56C9

accent

#1FDA0C

background

#FFFEFC

surface

#FFFDF6

border

#D7D5D0

text

#171610

muted

#858480

Preview Lab

Preview with #EFE581

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

Preview Lab → · Contrast checker → · Palette generator →