#C9EC4B#C9EC4B

#C9EC4B is a very light, vivid yellow-green. Relative luminance 0.729; OKLCH L 88.9% C 0.185 H 121.0°. Best body text is #000000 at 15.58:1 contrast (WCAG AA passes).

Color values

HEX	#C9EC4B
RGB	rgb(201, 236, 75)
HSL	hsl(73, 81%, 61%)
HSV	hsv(73, 68%, 93%)
CMYK	cmyk(14.8%, 0%, 68.2%, 7.5%)
CIE-LAB	lab(88.41, -32.49, 70.63)
CIE-LCH	lch(88.41, 77.74, 114.70°)
OKLab	oklab(88.9% -0.0952 0.1587)
OKLCH	oklch(88.9% 0.185 121)
XYZ	xyz(55.3537, 72.9165, 17.8134)
Luminance	0.7292 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9EC4B #6E4BEC

analogous

#ECBE4B #C9EC4B #78EC4B

triadic

#C9EC4B #4BC9EC #EC4BC9

tetradic

#C9EC4B #4BECBE #6E4BEC #EC4B78

square

#C9EC4B #4BECBE #6E4BEC #EC4B78

split-complementary

#C9EC4B #4B78EC #BE4BEC

monochromatic

#89AB12 #B6E218 #C9EC4B #DAF282 #EAF8BA

Accessibility & contrast

On white

1.35

#C9EC4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.58

#C9EC4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9EC4B

15.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9EC4B	#FFFFFF	#000000	##000000
##C9EC4B	1.00	1.35	15.58	15.58
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.58	21.00	1.00	1.00
##000000	15.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FADE32

Deuteranopia (green-blind)

#F6DE58

Tritanopia (blue-blind)

#D4E0CC

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #c9ec4b;
/* rgb */ color: rgb(201, 236, 75);
/* oklch */ color: oklch(88.9% 0.185 121.0);

Tailwind

colors: {
  custom: {
    50: '#ddf286',
    500: '#c9ec4b',
    950: '#000000',
  },
}

SCSS

$custom: #c9ec4b;
$custom-light: #ddf286;
$custom-dark: #000000;

JSON

{
  "hex": "#c9ec4b",
  "rgb": {
    "r": 201,
    "g": 236,
    "b": 75
  },
  "hsl": {
    "h": 73.043,
    "s": 80.905,
    "l": 60.98
  },
  "oklch": {
    "l": 0.88896,
    "c": 0.18501,
    "h": 121
  },
  "luminance": 0.72916
}

Semantic roles & 50–950 ramp

primary

#C9EC4B

secondary

#4B30AC

accent

#08DD37

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15160C

muted

#84857F

Preview Lab

Preview with #C9EC4B

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

Preview Lab → · Contrast checker → · Palette generator →