#ECFE6B#ECFE6B

#ECFE6B is a very light, vivid yellow. Relative luminance 0.898; OKLCH L 95.6% C 0.170 H 115.6°. Best body text is #000000 at 18.96:1 contrast (WCAG AA passes).

Color values

HEX	#ECFE6B
RGB	rgb(236, 254, 107)
HSL	hsl(67, 99%, 71%)
HSV	hsv(67, 58%, 100%)
CMYK	cmyk(7.1%, 0%, 57.9%, 0.4%)
CIE-LAB	lab(95.91, -25.11, 66.66)
CIE-LCH	lch(95.91, 71.23, 110.64°)
OKLab	oklab(95.6% -0.0736 0.1538)
OKLCH	oklch(95.6% 0.17 115.6)
XYZ	xyz(72.6892, 89.7790, 27.4069)
Luminance	0.8978 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFE6B #7D6BFE

analogous

#FEC66B #ECFE6B #A2FE6B

triadic

#ECFE6B #6BECFE #FE6BEC

tetradic

#ECFE6B #6BFEC6 #7D6BFE #FE6BA2

square

#ECFE6B #6BFEC6 #7D6BFE #FE6BA2

split-complementary

#ECFE6B #6BA2FE #C66BFE

monochromatic

#D0ED02 #E4FE2E #ECFE6B #F4FEA8 #FBFFE1

Accessibility & contrast

On white

1.11

#ECFE6B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.96

#ECFE6B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFE6B

18.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFE6B	#FFFFFF	#000000	##000000
##ECFE6B	1.00	1.11	18.96	18.96
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.96	21.00	1.00	1.00
##000000	18.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF25B

Deuteranopia (green-blind)

#FFF474

Tritanopia (blue-blind)

#F9F1DE

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #ecfe6b;
/* rgb */ color: rgb(236, 254, 107);
/* oklch */ color: oklch(95.6% 0.170 115.6);

Tailwind

colors: {
  custom: {
    50: '#f5fe9a',
    500: '#ecfe6b',
    950: '#000000',
  },
}

SCSS

$custom: #ecfe6b;
$custom-light: #f5fe9a;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfe6b",
  "rgb": {
    "r": 236,
    "g": 254,
    "b": 107
  },
  "hsl": {
    "h": 67.347,
    "s": 98.658,
    "l": 70.784
  },
  "oklch": {
    "l": 0.95603,
    "c": 0.17049,
    "h": 115.6
  },
  "luminance": 0.89778
}

Semantic roles & 50–950 ramp

primary

#ECFE6B

secondary

#4833DA

accent

#00E61C

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECFE6B

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

Preview Lab → · Contrast checker → · Palette generator →