#ECF955#ECF955

#ECF955 is a very light, vivid yellow. Relative luminance 0.862; OKLCH L 94.4% C 0.181 H 113.8°. Best body text is #000000 at 18.25:1 contrast (WCAG AA passes).

Color values

HEX	#ECF955
RGB	rgb(236, 249, 85)
HSL	hsl(65, 93%, 65%)
HSV	hsv(65, 66%, 98%)
CMYK	cmyk(5.2%, 0%, 65.9%, 2.4%)
CIE-LAB	lab(94.42, -24.16, 73.83)
CIE-LCH	lch(94.42, 77.68, 108.12°)
OKLab	oklab(94.36% -0.073 0.166)
OKLCH	oklch(94.36% 0.181 113.8)
XYZ	xyz(70.1093, 86.2415, 21.5456)
Luminance	0.8624 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF955 #6255F9

analogous

#F9B455 #ECF955 #9AF955

triadic

#ECF955 #55ECF9 #F955EC

tetradic

#ECF955 #55F9B4 #6255F9 #F9559A

square

#ECF955 #55F9B4 #6255F9 #F9559A

split-complementary

#ECF955 #559AF9 #B455F9

monochromatic

#BDCC07 #E5F71A #ECF955 #F3FB90 #F9FDCB

Accessibility & contrast

On white

1.15

#ECF955 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.25

#ECF955 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF955

18.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF955	#FFFFFF	#000000	##000000
##ECF955	1.00	1.15	18.25	18.25
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.25	21.00	1.00	1.00
##000000	18.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED3D

Deuteranopia (green-blind)

#FFF161

Tritanopia (blue-blind)

#FBEBD8

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #ecf955;
/* rgb */ color: rgb(236, 249, 85);
/* oklch */ color: oklch(94.4% 0.181 113.8);

Tailwind

colors: {
  custom: {
    50: '#f6fb8d',
    500: '#ecf955',
    950: '#000000',
  },
}

SCSS

$custom: #ecf955;
$custom-light: #f6fb8d;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf955",
  "rgb": {
    "r": 236,
    "g": 249,
    "b": 85
  },
  "hsl": {
    "h": 64.756,
    "s": 93.182,
    "l": 65.49
  },
  "oklch": {
    "l": 0.94355,
    "c": 0.18137,
    "h": 113.8
  },
  "luminance": 0.8624
}

Semantic roles & 50–950 ramp

primary

#ECF955

secondary

#372AC8

accent

#00E612

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #ECF955

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

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