#377D10#377D10

#377D10 is a mid, vivid yellow-green. Relative luminance 0.155; OKLCH L 52.4% C 0.153 H 137.6°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#377D10
RGB	rgb(55, 125, 16)
HSL	hsl(99, 77%, 28%)
HSV	hsv(99, 87%, 49%)
CMYK	cmyk(56%, 0%, 87.2%, 51%)
CIE-LAB	lab(46.33, -40.76, 46.99)
CIE-LCH	lch(46.33, 62.21, 130.94°)
OKLab	oklab(52.39% -0.1131 0.1031)
OKLCH	oklch(52.39% 0.153 137.6)
XYZ	xyz(9.0024, 15.5162, 3.0106)
Luminance	0.1552 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377D10 #56107D

analogous

#6D7D10 #377D10 #107D1F

triadic

#377D10 #10377D #7D1037

tetradic

#377D10 #106D7D #56107D #7D1F10

square

#377D10 #106D7D #56107D #7D1F10

split-complementary

#377D10 #1F107D #7D106D

monochromatic

#0C1B03 #1F4709 #377D10 #4FB317 #69E324

Accessibility & contrast

On white

5.12

#377D10 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#377D10 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #377D10

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377D10	#FFFFFF	#000000	##FFFFFF
##377D10	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#817100

Deuteranopia (green-blind)

#786C1F

Tritanopia (blue-blind)

#31786A

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #377d10;
/* rgb */ color: rgb(55, 125, 16);
/* oklch */ color: oklch(52.4% 0.153 137.6);

Tailwind

colors: {
  custom: {
    50: '#77a35b',
    500: '#377d10',
    950: '#000000',
  },
}

SCSS

$custom: #377d10;
$custom-light: #77a35b;
$custom-dark: #000000;

JSON

{
  "hex": "#377d10",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 16
  },
  "hsl": {
    "h": 98.532,
    "s": 77.305,
    "l": 27.647
  },
  "oklch": {
    "l": 0.5239,
    "c": 0.15302,
    "h": 137.6
  },
  "luminance": 0.15517
}

Semantic roles & 50–950 ramp

primary

#377D10

secondary

#8635B3

accent

#34F4AF

background

#F7FAF5

surface

#EEF4E9

border

#C9CEC5

text

#090F04

muted

#7B7F79

Preview Lab

Preview with #377D10

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

Preview Lab → · Contrast checker → · Palette generator →