#ECE55B#ECE55B

#ECE55B is a very light, vivid yellow. Relative luminance 0.746; OKLCH L 90.2% C 0.157 H 106.4°. Best body text is #000000 at 15.93:1 contrast (WCAG AA passes).

Color values

HEX	#ECE55B
RGB	rgb(236, 229, 91)
HSL	hsl(57, 79%, 64%)
HSV	hsv(57, 61%, 93%)
CMYK	cmyk(0%, 3%, 61.4%, 7.5%)
CIE-LAB	lab(89.22, -14.14, 66.04)
CIE-LCH	lch(89.22, 67.53, 102.09°)
OKLab	oklab(90.22% -0.0442 0.1504)
OKLCH	oklch(90.22% 0.157 106.4)
XYZ	xyz(64.5019, 74.6289, 20.9026)
Luminance	0.7463 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECE55B #5B62EC

analogous

#EC9C5B #ECE55B #ABEC5B

triadic

#ECE55B #5BECE5 #E55BEC

tetradic

#ECE55B #5BEC9C #5B62EC #EC5BAB

square

#ECE55B #5BEC9C #5B62EC #EC5BAB

split-complementary

#ECE55B #5BABEC #9C5BEC

monochromatic

#B7B015 #E6DC24 #ECE55B #F2EE92 #F9F6C9

Accessibility & contrast

On white

1.32

#ECE55B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.93

#ECE55B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECE55B

15.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECE55B	#FFFFFF	#000000	##000000
##ECE55B	1.00	1.32	15.93	15.93
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.93	21.00	1.00	1.00
##000000	15.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F7DD4A

Deuteranopia (green-blind)

#FAE363

Tritanopia (blue-blind)

#FCD7C8

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #ece55b;
/* rgb */ color: rgb(236, 229, 91);
/* oklch */ color: oklch(90.2% 0.157 106.4);

Tailwind

colors: {
  custom: {
    50: '#f5ed8f',
    500: '#ece55b',
    950: '#000000',
  },
}

SCSS

$custom: #ece55b;
$custom-light: #f5ed8f;
$custom-dark: #000000;

JSON

{
  "hex": "#ece55b",
  "rgb": {
    "r": 236,
    "g": 229,
    "b": 91
  },
  "hsl": {
    "h": 57.103,
    "s": 79.235,
    "l": 64.118
  },
  "oklch": {
    "l": 0.90218,
    "c": 0.15681,
    "h": 106.4
  },
  "luminance": 0.74627
}

Semantic roles & 50–950 ramp

primary

#ECE55B

secondary

#343BB7

accent

#14DC0A

background

#FFFEFC

surface

#FFFDF4

border

#D7D5CE

text

#17160D

muted

#85847F

Preview Lab

Preview with #ECE55B

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

Preview Lab → · Contrast checker → · Palette generator →