#F9EC57#F9EC57

#F9EC57 is a very light, vivid yellow. Relative luminance 0.808; OKLCH L 92.7% C 0.165 H 104.3°. Best body text is #000000 at 17.16:1 contrast (WCAG AA passes).

Color values

HEX	#F9EC57
RGB	rgb(249, 236, 87)
HSL	hsl(55, 93%, 66%)
HSV	hsv(55, 65%, 98%)
CMYK	cmyk(0%, 5.2%, 65.1%, 2.4%)
CIE-LAB	lab(92.05, -12.53, 70.95)
CIE-LCH	lch(92.05, 72.05, 100.01°)
OKLab	oklab(92.72% -0.0408 0.1599)
OKLCH	oklch(92.72% 0.165 104.3)
XYZ	xyz(70.7854, 80.8214, 20.8864)
Luminance	0.8082 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F9EC57 #5764F9

analogous

#F99B57 #F9EC57 #B5F957

triadic

#F9EC57 #57F9EC #EC57F9

tetradic

#F9EC57 #57F99B #5764F9 #F957B5

square

#F9EC57 #57F99B #5764F9 #F957B5

split-complementary

#F9EC57 #57B5F9 #9B57F9

monochromatic

#CEBE07 #F7E51C #F9EC57 #FBF392 #FDF9CD

Accessibility & contrast

On white

1.22

#F9EC57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.16

#F9EC57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F9EC57

17.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F9EC57	#FFFFFF	#000000	##000000
##F9EC57	1.00	1.22	17.16	17.16
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.16	21.00	1.00	1.00
##000000	17.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE443

Deuteranopia (green-blind)

#FFEB60

Tritanopia (blue-blind)

#FFDDCD

Achromatopsia (no color)

#E8E8E8

Design tokens & code

CSS

--color: #f9ec57;
/* rgb */ color: rgb(249, 236, 87);
/* oklch */ color: oklch(92.7% 0.165 104.3);

Tailwind

colors: {
  custom: {
    50: '#fff18d',
    500: '#f9ec57',
    950: '#000000',
  },
}

SCSS

$custom: #f9ec57;
$custom-light: #fff18d;
$custom-dark: #000000;

JSON

{
  "hex": "#f9ec57",
  "rgb": {
    "r": 249,
    "g": 236,
    "b": 87
  },
  "hsl": {
    "h": 55.185,
    "s": 93.103,
    "l": 65.882
  },
  "oklch": {
    "l": 0.92718,
    "c": 0.16504,
    "h": 104.3
  },
  "luminance": 0.80819
}

Semantic roles & 50–950 ramp

primary

#F9EC57

secondary

#2B37CA

accent

#12E600

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18160D

muted

#86857F

Preview Lab

Preview with #F9EC57

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

Preview Lab → · Contrast checker → · Palette generator →