#ECF977#ECF977

#ECF977 is a very light, vivid yellow. Relative luminance 0.869; OKLCH L 94.7% C 0.154 H 114.1°. Best body text is #000000 at 18.38:1 contrast (WCAG AA passes).

Color values

HEX	#ECF977
RGB	rgb(236, 249, 119)
HSL	hsl(66, 92%, 72%)
HSV	hsv(66, 52%, 98%)
CMYK	cmyk(5.2%, 0%, 52.2%, 2.4%)
CIE-LAB	lab(94.70, -21.80, 60.09)
CIE-LCH	lch(94.70, 63.92, 109.94°)
OKLab	oklab(94.68% -0.0631 0.141)
OKLCH	oklch(94.68% 0.154 114.1)
XYZ	xyz(71.7988, 86.9173, 30.4436)
Luminance	0.8692 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF977 #8477F9

analogous

#F9C577 #ECF977 #ABF977

triadic

#ECF977 #77ECF9 #F977EC

tetradic

#ECF977 #77F9C5 #8477F9 #F977AB

square

#ECF977 #77F9C5 #8477F9 #F977AB

split-complementary

#ECF977 #77ABF9 #C577F9

monochromatic

#D5EB0A #E4F63C #ECF977 #F4FCB2 #FBFEE2

Accessibility & contrast

On white

1.14

#ECF977 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.38

#ECF977 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF977

18.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF977	#FFFFFF	#000000	##000000
##ECF977	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)

#FFEF6A

Deuteranopia (green-blind)

#FFF17E

Tritanopia (blue-blind)

#F9EDDC

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #ecf977;
/* rgb */ color: rgb(236, 249, 119);
/* oklch */ color: oklch(94.7% 0.154 114.1);

Tailwind

colors: {
  custom: {
    50: '#f4fba2',
    500: '#ecf977',
    950: '#000000',
  },
}

SCSS

$custom: #ecf977;
$custom-light: #f4fba2;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf977",
  "rgb": {
    "r": 236,
    "g": 249,
    "b": 119
  },
  "hsl": {
    "h": 66,
    "s": 91.549,
    "l": 72.157
  },
  "oklch": {
    "l": 0.94677,
    "c": 0.15445,
    "h": 114.1
  },
  "luminance": 0.86916
}

Semantic roles & 50–950 ramp

primary

#ECF977

secondary

#4E3FD5

accent

#00E617

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF977

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

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