#ECEF59#ECEF59

#ECEF59 is a very light, vivid yellow. Relative luminance 0.803; OKLCH L 92.3% C 0.168 H 110.4°. Best body text is #000000 at 17.06:1 contrast (WCAG AA passes).

Color values

HEX	#ECEF59
RGB	rgb(236, 239, 89)
HSL	hsl(61, 82%, 64%)
HSV	hsv(61, 63%, 94%)
CMYK	cmyk(1.3%, 0%, 62.8%, 6.3%)
CIE-LAB	lab(91.81, -19.15, 69.60)
CIE-LCH	lch(91.81, 72.18, 105.38°)
OKLab	oklab(92.28% -0.0586 0.1577)
OKLCH	oklch(92.28% 0.168 110.4)
XYZ	xyz(67.2638, 80.2889, 21.4033)
Luminance	0.8029 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECEF59 #5C59EF

analogous

#EFA759 #ECEF59 #A1EF59

triadic

#ECEF59 #59ECEF #EF59EC

tetradic

#ECEF59 #59EFA7 #5C59EF #EF59A1

square

#ECEF59 #59EFA7 #5C59EF #EF59A1

split-complementary

#ECEF59 #59A1EF #A759EF

monochromatic

#B8BC12 #E6EA21 #ECEF59 #F2F491 #F9FAC9

Accessibility & contrast

On white

1.23

#ECEF59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.06

#ECEF59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECEF59

17.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECEF59	#FFFFFF	#000000	##000000
##ECEF59	1.00	1.23	17.06	17.06
#FFFFFF	1.23	1.00	21.00	21.00
#000000	17.06	21.00	1.00	1.00
##000000	17.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE545

Deuteranopia (green-blind)

#FFEA63

Tritanopia (blue-blind)

#FBE1D0

Achromatopsia (no color)

#E7E7E7

Design tokens & code

CSS

--color: #ecef59;
/* rgb */ color: rgb(236, 239, 89);
/* oklch */ color: oklch(92.3% 0.168 110.4);

Tailwind

colors: {
  custom: {
    50: '#f5f48f',
    500: '#ecef59',
    950: '#000000',
  },
}

SCSS

$custom: #ecef59;
$custom-light: #f5f48f;
$custom-dark: #000000;

JSON

{
  "hex": "#ecef59",
  "rgb": {
    "r": 236,
    "g": 239,
    "b": 89
  },
  "hsl": {
    "h": 61.2,
    "s": 82.418,
    "l": 64.314
  },
  "oklch": {
    "l": 0.92283,
    "c": 0.16822,
    "h": 110.4
  },
  "luminance": 0.80287
}

Semantic roles & 50–950 ramp

primary

#ECEF59

secondary

#3532BA

accent

#07DF0B

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #ECEF59

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

Preview Lab → · Contrast checker → · Palette generator →