#F3EF81#F3EF81

#F3EF81 is a very light, vivid yellow. Relative luminance 0.824; OKLCH L 93.3% C 0.133 H 106.9°. Best body text is #000000 at 17.47:1 contrast (WCAG AA passes).

Color values

HEX	#F3EF81
RGB	rgb(243, 239, 129)
HSL	hsl(58, 83%, 73%)
HSV	hsv(58, 47%, 95%)
CMYK	cmyk(0%, 1.6%, 46.9%, 4.7%)
CIE-LAB	lab(92.74, -13.35, 53.30)
CIE-LCH	lch(92.74, 54.95, 104.06°)
OKLab	oklab(93.28% -0.0384 0.1269)
OKLCH	oklch(93.28% 0.133 106.9)
XYZ	xyz(71.7927, 82.3745, 32.8826)
Luminance	0.8237 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F3EF81 #8185F3

analogous

#F3B681 #F3EF81 #BEF381

triadic

#F3EF81 #81F3EF #EF81F3

tetradic

#F3EF81 #81F3B6 #8185F3 #F381BE

square

#F3EF81 #81F3B6 #8185F3 #F381BE

split-complementary

#F3EF81 #81BEF3 #B681F3

monochromatic

#E4DD16 #EEE849 #F3EF81 #F8F6B9 #FCFBE3

Accessibility & contrast

On white

1.20

#F3EF81 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.47

#F3EF81 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F3EF81

17.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F3EF81	#FFFFFF	#000000	##000000
##F3EF81	1.00	1.20	17.47	17.47
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.47	21.00	1.00	1.00
##000000	17.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE877

Deuteranopia (green-blind)

#FFEC86

Tritanopia (blue-blind)

#FFE3D5

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #f3ef81;
/* rgb */ color: rgb(243, 239, 129);
/* oklch */ color: oklch(93.3% 0.133 106.9);

Tailwind

colors: {
  custom: {
    50: '#f9f4a8',
    500: '#f3ef81',
    950: '#000000',
  },
}

SCSS

$custom: #f3ef81;
$custom-light: #f9f4a8;
$custom-dark: #000000;

JSON

{
  "hex": "#f3ef81",
  "rgb": {
    "r": 243,
    "g": 239,
    "b": 129
  },
  "hsl": {
    "h": 57.895,
    "s": 82.609,
    "l": 72.941
  },
  "oklch": {
    "l": 0.93277,
    "c": 0.13263,
    "h": 106.9
  },
  "luminance": 0.82373
}

Semantic roles & 50–950 ramp

primary

#F3EF81

secondary

#4A4ECF

accent

#0EDF06

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#181710

muted

#868581

Preview Lab

Preview with #F3EF81

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

Preview Lab → · Contrast checker → · Palette generator →