#F9F57B#F9F57B

#F9F57B is a very light, vivid yellow. Relative luminance 0.869; OKLCH L 94.9% C 0.144 H 107.2°. Best body text is #000000 at 18.38:1 contrast (WCAG AA passes).

Color values

HEX	#F9F57B
RGB	rgb(249, 245, 123)
HSL	hsl(58, 91%, 73%)
HSV	hsv(58, 51%, 98%)
CMYK	cmyk(0%, 1.6%, 50.6%, 2.4%)
CIE-LAB	lab(94.69, -14.45, 58.51)
CIE-LCH	lch(94.69, 60.27, 103.87°)
OKLab	oklab(94.92% -0.0425 0.1377)
OKLCH	oklch(94.92% 0.144 107.2)
XYZ	xyz(75.2964, 86.8767, 31.5375)
Luminance	0.8688 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F9F57B #7B7FF9

analogous

#F9B67B #F9F57B #BEF97B

triadic

#F9F57B #7BF9F5 #F57BF9

tetradic

#F9F57B #7BF9B6 #7B7FF9 #F97BBE

square

#F9F57B #7BF9B6 #7B7FF9 #F97BBE

split-complementary

#F9F57B #7BBEF9 #B67BF9

monochromatic

#EFE80B #F6F140 #F9F57B #FCF9B6 #FEFDE2

Accessibility & contrast

On white

1.14

#F9F57B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.38

#F9F57B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F9F57B

18.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F9F57B	#FFFFFF	#000000	##000000
##F9F57B	1.00	1.14	18.38	18.38
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.38	21.00	1.00	1.00
##000000	18.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED70

Deuteranopia (green-blind)

#FFF281

Tritanopia (blue-blind)

#FFE8D9

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #f9f57b;
/* rgb */ color: rgb(249, 245, 123);
/* oklch */ color: oklch(94.9% 0.144 107.2);

Tailwind

colors: {
  custom: {
    50: '#fdf8a4',
    500: '#f9f57b',
    950: '#000000',
  },
}

SCSS

$custom: #f9f57b;
$custom-light: #fdf8a4;
$custom-dark: #000000;

JSON

{
  "hex": "#f9f57b",
  "rgb": {
    "r": 249,
    "g": 245,
    "b": 123
  },
  "hsl": {
    "h": 58.095,
    "s": 91.304,
    "l": 72.941
  },
  "oklch": {
    "l": 0.94918,
    "c": 0.14414,
    "h": 107.2
  },
  "luminance": 0.86875
}

Semantic roles & 50–950 ramp

primary

#F9F57B

secondary

#4347D6

accent

#07E600

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#18170F

muted

#868580

Preview Lab

Preview with #F9F57B

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

Preview Lab → · Contrast checker → · Palette generator →