#ECF398#ECF398

#ECF398 is a very light, moderate yellow. Relative luminance 0.842; OKLCH L 93.9% C 0.114 H 112.2°. Best body text is #000000 at 17.84:1 contrast (WCAG AA passes).

Color values

HEX	#ECF398
RGB	rgb(236, 243, 152)
HSL	hsl(65, 79%, 77%)
HSV	hsv(65, 37%, 95%)
CMYK	cmyk(2.9%, 0%, 37.4%, 4.7%)
CIE-LAB	lab(93.54, -15.70, 43.11)
CIE-LCH	lch(93.54, 45.88, 110.01°)
OKLab	oklab(93.88% -0.043 0.1055)
OKLCH	oklch(93.88% 0.114 112.2)
XYZ	xyz(72.3108, 84.2021, 42.1430)
Luminance	0.8420 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF398 #9F98F3

analogous

#F3CC98 #ECF398 #BFF398

triadic

#ECF398 #98ECF3 #F398EC

tetradic

#ECF398 #98F3CC #9F98F3 #F398BF

square

#ECF398 #98F3CC #9F98F3 #F398BF

split-complementary

#ECF398 #98BFF3 #CC98F3

monochromatic

#D8E62A #E2ED61 #ECF398 #F6F9CF #FAFCE4

Accessibility & contrast

On white

1.18

#ECF398 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.84

#ECF398 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF398

17.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF398	#FFFFFF	#000000	##000000
##ECF398	1.00	1.18	17.84	17.84
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.84	21.00	1.00	1.00
##000000	17.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB91

Deuteranopia (green-blind)

#FFEE9C

Tritanopia (blue-blind)

#F7E9DC

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #ecf398;
/* rgb */ color: rgb(236, 243, 152);
/* oklch */ color: oklch(93.9% 0.114 112.2);

Tailwind

colors: {
  custom: {
    50: '#f3f7b7',
    500: '#ecf398',
    950: '#000000',
  },
}

SCSS

$custom: #ecf398;
$custom-light: #f3f7b7;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf398",
  "rgb": {
    "r": 236,
    "g": 243,
    "b": 152
  },
  "hsl": {
    "h": 64.615,
    "s": 79.13,
    "l": 77.451
  },
  "oklch": {
    "l": 0.93878,
    "c": 0.1139,
    "h": 112.2
  },
  "luminance": 0.84201
}

Semantic roles & 50–950 ramp

primary

#ECF398

secondary

#675ED1

accent

#0ADB1A

background

#FFFFFD

surface

#FEFEF8

border

#D6D6D1

text

#171711

muted

#858581

Preview Lab

Preview with #ECF398

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

Preview Lab → · Contrast checker → · Palette generator →