#ECF397#ECF397

#ECF397 is a very light, moderate yellow. Relative luminance 0.842; OKLCH L 93.9% C 0.115 H 112.1°. Best body text is #000000 at 17.83:1 contrast (WCAG AA passes).

Color values

HEX	#ECF397
RGB	rgb(236, 243, 151)
HSL	hsl(65, 79%, 77%)
HSV	hsv(65, 38%, 95%)
CMYK	cmyk(2.9%, 0%, 37.9%, 4.7%)
CIE-LAB	lab(93.52, -15.81, 43.58)
CIE-LCH	lch(93.52, 46.36, 109.94°)
OKLab	oklab(93.86% -0.0433 0.1065)
OKLCH	oklch(93.86% 0.115 112.1)
XYZ	xyz(72.2292, 84.1695, 41.7135)
Luminance	0.8417 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF397 #9E97F3

analogous

#F3CC97 #ECF397 #BEF397

triadic

#ECF397 #97ECF3 #F397EC

tetradic

#ECF397 #97F3CC #9E97F3 #F397BE

square

#ECF397 #97F3CC #9E97F3 #F397BE

split-complementary

#ECF397 #97BEF3 #CC97F3

monochromatic

#D8E629 #E2ED60 #ECF397 #F6F9CE #FAFCE4

Accessibility & contrast

On white

1.18

#ECF397 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.83

#ECF397 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF397

17.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF397	#FFFFFF	#000000	##000000
##ECF397	1.00	1.18	17.83	17.83
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.83	21.00	1.00	1.00
##000000	17.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB90

Deuteranopia (green-blind)

#FFEE9B

Tritanopia (blue-blind)

#F7E9DC

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #ecf397;
/* rgb */ color: rgb(236, 243, 151);
/* oklch */ color: oklch(93.9% 0.115 112.1);

Tailwind

colors: {
  custom: {
    50: '#f3f7b7',
    500: '#ecf397',
    950: '#000000',
  },
}

SCSS

$custom: #ecf397;
$custom-light: #f3f7b7;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf397",
  "rgb": {
    "r": 236,
    "g": 243,
    "b": 151
  },
  "hsl": {
    "h": 64.565,
    "s": 79.31,
    "l": 77.255
  },
  "oklch": {
    "l": 0.93862,
    "c": 0.115,
    "h": 112.1
  },
  "luminance": 0.84168
}

Semantic roles & 50–950 ramp

primary

#ECF397

secondary

#665DD1

accent

#0ADC1A

background

#FFFFFD

surface

#FEFEF8

border

#D6D6D1

text

#171711

muted

#858581

Preview Lab

Preview with #ECF397

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

Preview Lab → · Contrast checker → · Palette generator →