#ECF158#ECF158

#ECF158 is a very light, vivid yellow. Relative luminance 0.814; OKLCH L 92.7% C 0.171 H 111.1°. Best body text is #000000 at 17.29:1 contrast (WCAG AA passes).

Color values

HEX	#ECF158
RGB	rgb(236, 241, 88)
HSL	hsl(62, 85%, 65%)
HSV	hsv(62, 63%, 95%)
CMYK	cmyk(2.1%, 0%, 63.5%, 5.5%)
CIE-LAB	lab(92.33, -20.17, 70.53)
CIE-LCH	lch(92.33, 73.36, 105.96°)
OKLab	oklab(92.69% -0.0616 0.1595)
OKLCH	oklch(92.69% 0.171 111.1)
XYZ	xyz(67.8108, 81.4497, 21.3799)
Luminance	0.8145 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF158 #5D58F1

analogous

#F1AA58 #ECF158 #A0F158

triadic

#ECF158 #58ECF1 #F158EC

tetradic

#ECF158 #58F1AA #5D58F1 #F158A0

square

#ECF158 #58F1AA #5D58F1 #F158A0

split-complementary

#ECF158 #58A0F1 #AA58F1

monochromatic

#B9BF10 #E6EC20 #ECF158 #F2F690 #F9FAC9

Accessibility & contrast

On white

1.21

#ECF158 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.29

#ECF158 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF158

17.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF158	#FFFFFF	#000000	##000000
##ECF158	1.00	1.21	17.29	17.29
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.29	21.00	1.00	1.00
##000000	17.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE744

Deuteranopia (green-blind)

#FFEB62

Tritanopia (blue-blind)

#FBE3D2

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #ecf158;
/* rgb */ color: rgb(236, 241, 88);
/* oklch */ color: oklch(92.7% 0.171 111.1);

Tailwind

colors: {
  custom: {
    50: '#f5f58e',
    500: '#ecf158',
    950: '#000000',
  },
}

SCSS

$custom: #ecf158;
$custom-light: #f5f58e;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf158",
  "rgb": {
    "r": 236,
    "g": 241,
    "b": 88
  },
  "hsl": {
    "h": 61.961,
    "s": 84.53,
    "l": 64.51
  },
  "oklch": {
    "l": 0.92694,
    "c": 0.17099,
    "h": 111.1
  },
  "luminance": 0.81448
}

Semantic roles & 50–950 ramp

primary

#ECF158

secondary

#3530BD

accent

#05E10C

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #ECF158

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

Preview Lab → · Contrast checker → · Palette generator →