#ECF958#ECF958

#ECF958 is a very light, vivid yellow. Relative luminance 0.863; OKLCH L 94.4% C 0.179 H 113.8°. Best body text is #000000 at 18.26:1 contrast (WCAG AA passes).

Color values

HEX	#ECF958
RGB	rgb(236, 249, 88)
HSL	hsl(65, 93%, 66%)
HSV	hsv(65, 65%, 98%)
CMYK	cmyk(5.2%, 0%, 64.7%, 2.4%)
CIE-LAB	lab(94.44, -23.99, 72.72)
CIE-LCH	lch(94.44, 76.57, 108.26°)
OKLab	oklab(94.38% -0.0723 0.1641)
OKLCH	oklch(94.38% 0.179 113.8)
XYZ	xyz(70.2311, 86.2902, 22.1866)
Luminance	0.8629 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF958 #6558F9

analogous

#F9B558 #ECF958 #9BF958

triadic

#ECF958 #58ECF9 #F958EC

tetradic

#ECF958 #58F9B5 #6558F9 #F9589B

square

#ECF958 #58F9B5 #6558F9 #F9589B

split-complementary

#ECF958 #589BF9 #B558F9

monochromatic

#BFCF07 #E5F71D #ECF958 #F3FB93 #F9FDCE

Accessibility & contrast

On white

1.15

#ECF958 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.26

#ECF958 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF958

18.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF958	#FFFFFF	#000000	##000000
##ECF958	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)

#FFED42

Deuteranopia (green-blind)

#FFF163

Tritanopia (blue-blind)

#FBEBD8

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #ecf958;
/* rgb */ color: rgb(236, 249, 88);
/* oklch */ color: oklch(94.4% 0.179 113.8);

Tailwind

colors: {
  custom: {
    50: '#f5fb8f',
    500: '#ecf958',
    950: '#000000',
  },
}

SCSS

$custom: #ecf958;
$custom-light: #f5fb8f;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf958",
  "rgb": {
    "r": 236,
    "g": 249,
    "b": 88
  },
  "hsl": {
    "h": 64.845,
    "s": 93.064,
    "l": 66.078
  },
  "oklch": {
    "l": 0.94378,
    "c": 0.17934,
    "h": 113.8
  },
  "luminance": 0.86289
}

Semantic roles & 50–950 ramp

primary

#ECF958

secondary

#382BCA

accent

#00E613

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #ECF958

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

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