#C9D540#C9D540

#C9D540 is a very light, vivid yellow. Relative luminance 0.604; OKLCH L 83.8% C 0.166 H 114.0°. Best body text is #000000 at 13.08:1 contrast (WCAG AA passes).

Color values

HEX	#C9D540
RGB	rgb(201, 213, 64)
HSL	hsl(65, 64%, 54%)
HSV	hsv(65, 70%, 84%)
CMYK	cmyk(5.6%, 0%, 70%, 16.5%)
CIE-LAB	lab(82.04, -22.20, 68.26)
CIE-LCH	lch(82.04, 71.78, 108.02°)
OKLab	oklab(83.76% -0.0676 0.152)
OKLCH	oklch(83.76% 0.166 114)
XYZ	xyz(48.8084, 60.3771, 13.9323)
Luminance	0.6038 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9D540 #4C40D5

analogous

#D59740 #C9D540 #7FD540

triadic

#C9D540 #40C9D5 #D540C9

tetradic

#C9D540 #40D597 #4C40D5 #D5407F

square

#C9D540 #40D597 #4C40D5 #D5407F

split-complementary

#C9D540 #407FD5 #9740D5

monochromatic

#777F1C #A6B127 #C9D540 #D7E072 #E5EBA4

Accessibility & contrast

On white

1.61

#C9D540 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.08

#C9D540 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9D540

13.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9D540	#FFFFFF	#000000	##000000
##C9D540	1.00	1.61	13.08	13.08
#FFFFFF	1.61	1.00	21.00	21.00
#000000	13.08	21.00	1.00	1.00
##000000	13.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E4CB26

Deuteranopia (green-blind)

#E4CD4C

Tritanopia (blue-blind)

#D6C9B8

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #c9d540;
/* rgb */ color: rgb(201, 213, 64);
/* oklch */ color: oklch(83.8% 0.166 114.0);

Tailwind

colors: {
  custom: {
    50: '#dde17e',
    500: '#c9d540',
    950: '#000000',
  },
}

SCSS

$custom: #c9d540;
$custom-light: #dde17e;
$custom-dark: #000000;

JSON

{
  "hex": "#c9d540",
  "rgb": {
    "r": 201,
    "g": 213,
    "b": 64
  },
  "hsl": {
    "h": 64.832,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.83757,
    "c": 0.16632,
    "h": 114
  },
  "luminance": 0.60376
}

Semantic roles & 50–950 ramp

primary

#C9D540

secondary

#3A3386

accent

#41E74E

background

#FEFEFB

surface

#FCFCF2

border

#D5D5CC

text

#16150B

muted

#84847E

Preview Lab

Preview with #C9D540

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

Preview Lab → · Contrast checker → · Palette generator →