#257D1B#257D1B

#257D1B is a mid, vivid green. Relative luminance 0.151; OKLCH L 51.8% C 0.155 H 141.7°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#257D1B
RGB	rgb(37, 125, 27)
HSL	hsl(114, 64%, 30%)
HSV	hsv(114, 78%, 49%)
CMYK	cmyk(70.4%, 0%, 78.4%, 51%)
CIE-LAB	lab(45.82, -44.71, 42.87)
CIE-LCH	lch(45.82, 61.94, 136.20°)
OKLab	oklab(51.83% -0.1219 0.0963)
OKLCH	oklch(51.83% 0.155 141.7)
XYZ	xyz(8.2939, 15.1388, 3.5217)
Luminance	0.1514 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257D1B #731B7D

analogous

#567D1B #257D1B #1B7D42

triadic

#257D1B #1B257D #7D1B25

tetradic

#257D1B #1B567D #731B7D #7D421B

square

#257D1B #1B567D #731B7D #7D421B

split-complementary

#257D1B #421B7D #7D1B56

monochromatic

#071905 #164B10 #257D1B #34AF26 #4DD53D

Accessibility & contrast

On white

5.21

#257D1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#257D1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257D1B

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257D1B	#FFFFFF	#000000	##FFFFFF
##257D1B	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#807105

Deuteranopia (green-blind)

#766A26

Tritanopia (blue-blind)

#11796A

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #257d1b;
/* rgb */ color: rgb(37, 125, 27);
/* oklch */ color: oklch(51.8% 0.155 141.7);

Tailwind

colors: {
  custom: {
    50: '#6da45f',
    500: '#257d1b',
    950: '#000000',
  },
}

SCSS

$custom: #257d1b;
$custom-light: #6da45f;
$custom-dark: #000000;

JSON

{
  "hex": "#257d1b",
  "rgb": {
    "r": 37,
    "g": 125,
    "b": 27
  },
  "hsl": {
    "h": 113.878,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.51827,
    "c": 0.1554,
    "h": 141.7
  },
  "luminance": 0.1514
}

Semantic roles & 50–950 ramp

primary

#257D1B

secondary

#A643B1

accent

#40E7D6

background

#F7FAF5

surface

#EDF4EA

border

#C8CEC6

text

#080F05

muted

#7B7F79

Preview Lab

Preview with #257D1B

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

Preview Lab → · Contrast checker → · Palette generator →