#257E40#257E40

#257E40 is a mid, vivid green. Relative luminance 0.157; OKLCH L 52.6% C 0.127 H 149.6°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#257E40
RGB	rgb(37, 126, 64)
HSL	hsl(138, 55%, 32%)
HSV	hsv(138, 71%, 49%)
CMYK	cmyk(70.6%, 0%, 49.2%, 50.6%)
CIE-LAB	lab(46.56, -40.50, 26.26)
CIE-LCH	lch(46.56, 48.27, 147.04°)
OKLab	oklab(52.56% -0.1091 0.0641)
OKLCH	oklch(52.56% 0.127 149.6)
XYZ	xyz(9.1485, 15.6842, 7.3947)
Luminance	0.1568 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257E40 #7E2563

analogous

#377E25 #257E40 #257E6D

triadic

#257E40 #40257E #7E4025

tetradic

#257E40 #25377E #7E2563 #7E6D25

square

#257E40 #25377E #7E2563 #7E6D25

split-complementary

#257E40 #6D257E #7E2537

monochromatic

#091F10 #174F28 #257E40 #33AD58 #51CC77

Accessibility & contrast

On white

5.08

#257E40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#257E40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257E40

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257E40	#FFFFFF	#000000	##FFFFFF
##257E40	1.00	5.08	4.14	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F733B

Deuteranopia (green-blind)

#746B44

Tritanopia (blue-blind)

#007C6F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #257e40;
/* rgb */ color: rgb(37, 126, 64);
/* oklch */ color: oklch(52.6% 0.127 149.6);

Tailwind

colors: {
  custom: {
    50: '#6ca476',
    500: '#257e40',
    950: '#000000',
  },
}

SCSS

$custom: #257e40;
$custom-light: #6ca476;
$custom-dark: #000000;

JSON

{
  "hex": "#257e40",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 64
  },
  "hsl": {
    "h": 138.202,
    "s": 54.601,
    "l": 31.961
  },
  "oklch": {
    "l": 0.5256,
    "c": 0.12655,
    "h": 149.6
  },
  "luminance": 0.15685
}

Semantic roles & 50–950 ramp

primary

#257E40

secondary

#B04F93

accent

#4AB1DE

background

#F6FAF7

surface

#ECF4ED

border

#C7CEC8

text

#080F08

muted

#7A7F7B

Preview Lab

Preview with #257E40

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

Preview Lab → · Contrast checker → · Palette generator →