#ECEF58#ECEF58

#ECEF58 is a very light, vivid yellow. Relative luminance 0.803; OKLCH L 92.3% C 0.169 H 110.4°. Best body text is #000000 at 17.05:1 contrast (WCAG AA passes).

Color values

HEX	#ECEF58
RGB	rgb(236, 239, 88)
HSL	hsl(61, 83%, 64%)
HSV	hsv(61, 63%, 94%)
CMYK	cmyk(1.3%, 0%, 63.2%, 6.3%)
CIE-LAB	lab(91.81, -19.20, 69.98)
CIE-LCH	lch(91.81, 72.57, 105.35°)
OKLab	oklab(92.28% -0.0589 0.1584)
OKLCH	oklch(92.28% 0.169 110.4)
XYZ	xyz(67.2221, 80.2722, 21.1836)
Luminance	0.8027 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECEF58 #5B58EF

analogous

#EFA758 #ECEF58 #A1EF58

triadic

#ECEF58 #58ECEF #EF58EC

tetradic

#ECEF58 #58EFA7 #5B58EF #EF58A1

square

#ECEF58 #58EFA7 #5B58EF #EF58A1

split-complementary

#ECEF58 #58A1EF #A758EF

monochromatic

#B7BB12 #E6EA20 #ECEF58 #F2F490 #F9FAC8

Accessibility & contrast

On white

1.23

#ECEF58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.05

#ECEF58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECEF58

17.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECEF58	#FFFFFF	#000000	##000000
##ECEF58	1.00	1.23	17.05	17.05
#FFFFFF	1.23	1.00	21.00	21.00
#000000	17.05	21.00	1.00	1.00
##000000	17.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE544

Deuteranopia (green-blind)

#FFEA62

Tritanopia (blue-blind)

#FCE1D0

Achromatopsia (no color)

#E7E7E7

Design tokens & code

CSS

--color: #ecef58;
/* rgb */ color: rgb(236, 239, 88);
/* oklch */ color: oklch(92.3% 0.169 110.4);

Tailwind

colors: {
  custom: {
    50: '#f5f48e',
    500: '#ecef58',
    950: '#000000',
  },
}

SCSS

$custom: #ecef58;
$custom-light: #f5f48e;
$custom-dark: #000000;

JSON

{
  "hex": "#ecef58",
  "rgb": {
    "r": 236,
    "g": 239,
    "b": 88
  },
  "hsl": {
    "h": 61.192,
    "s": 82.514,
    "l": 64.118
  },
  "oklch": {
    "l": 0.92275,
    "c": 0.16894,
    "h": 110.4
  },
  "luminance": 0.8027
}

Semantic roles & 50–950 ramp

primary

#ECEF58

secondary

#3432BA

accent

#07DF0B

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #ECEF58

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

Preview Lab → · Contrast checker → · Palette generator →