#ECF877#ECF877

#ECF877 is a very light, vivid yellow. Relative luminance 0.863; OKLCH L 94.5% C 0.153 H 113.7°. Best body text is #000000 at 18.26:1 contrast (WCAG AA passes).

Color values

HEX	#ECF877
RGB	rgb(236, 248, 119)
HSL	hsl(66, 90%, 72%)
HSV	hsv(66, 52%, 97%)
CMYK	cmyk(4.8%, 0%, 52%, 2.7%)
CIE-LAB	lab(94.44, -21.32, 59.78)
CIE-LCH	lch(94.44, 63.47, 109.63°)
OKLab	oklab(94.47% -0.0617 0.1403)
OKLCH	oklch(94.47% 0.153 113.7)
XYZ	xyz(71.4906, 86.3007, 30.3408)
Luminance	0.8630 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF877 #8377F8

analogous

#F8C377 #ECF877 #ACF877

triadic

#ECF877 #77ECF8 #F877EC

tetradic

#ECF877 #77F8C3 #8377F8 #F877AC

square

#ECF877 #77F8C3 #8377F8 #F877AC

split-complementary

#ECF877 #77ACF8 #C377F8

monochromatic

#D4E90C #E4F53D #ECF877 #F4FBB1 #FBFEE2

Accessibility & contrast

On white

1.15

#ECF877 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.26

#ECF877 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF877

18.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF877	#FFFFFF	#000000	##000000
##ECF877	1.00	1.15	18.26	18.26
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.26	21.00	1.00	1.00
##000000	18.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE6B

Deuteranopia (green-blind)

#FFF07E

Tritanopia (blue-blind)

#F9ECDB

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #ecf877;
/* rgb */ color: rgb(236, 248, 119);
/* oklch */ color: oklch(94.5% 0.153 113.7);

Tailwind

colors: {
  custom: {
    50: '#f4faa2',
    500: '#ecf877',
    950: '#000000',
  },
}

SCSS

$custom: #ecf877;
$custom-light: #f4faa2;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf877",
  "rgb": {
    "r": 236,
    "g": 248,
    "b": 119
  },
  "hsl": {
    "h": 65.581,
    "s": 90.21,
    "l": 71.961
  },
  "oklch": {
    "l": 0.94468,
    "c": 0.1533,
    "h": 113.7
  },
  "luminance": 0.863
}

Semantic roles & 50–950 ramp

primary

#ECF877

secondary

#4D3FD4

accent

#00E615

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF877

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

Preview Lab → · Contrast checker → · Palette generator →