#257B4E#257B4E

#257B4E is a mid, moderate green. Relative luminance 0.151; OKLCH L 52.0% C 0.108 H 156.2°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#257B4E
RGB	rgb(37, 123, 78)
HSL	hsl(149, 54%, 31%)
HSV	hsv(149, 70%, 48%)
CMYK	cmyk(69.9%, 0%, 36.6%, 51.8%)
CIE-LAB	lab(45.78, -36.56, 17.39)
CIE-LCH	lch(45.78, 40.49, 154.56°)
OKLab	oklab(52% -0.0991 0.0437)
OKLCH	oklch(52% 0.108 156.2)
XYZ	xyz(9.2202, 15.1083, 9.6365)
Luminance	0.1511 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257B4E #7B2552

analogous

#277B25 #257B4E #257B79

triadic

#257B4E #4E257B #7B4E25

tetradic

#257B4E #25277B #7B2552 #7B7925

square

#257B4E #25277B #7B2552 #7B7925

split-complementary

#257B4E #79257B #7B2527

monochromatic

#091D12 #174C30 #257B4E #33AA6C #50CA8A

Accessibility & contrast

On white

5.22

#257B4E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#257B4E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257B4E

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257B4E	#FFFFFF	#000000	##FFFFFF
##257B4E	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A714B

Deuteranopia (green-blind)

#6F6951

Tritanopia (blue-blind)

#007A6F

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #257b4e;
/* rgb */ color: rgb(37, 123, 78);
/* oklch */ color: oklch(52.0% 0.108 156.2);

Tailwind

colors: {
  custom: {
    50: '#6ba280',
    500: '#257b4e',
    950: '#000000',
  },
}

SCSS

$custom: #257b4e;
$custom-light: #6ba280;
$custom-dark: #000000;

JSON

{
  "hex": "#257b4e",
  "rgb": {
    "r": 37,
    "g": 123,
    "b": 78
  },
  "hsl": {
    "h": 148.605,
    "s": 53.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.52001,
    "c": 0.1083,
    "h": 156.2
  },
  "luminance": 0.15109
}

Semantic roles & 50–950 ramp

primary

#257B4E

secondary

#AD4F80

accent

#4B97DD

background

#F6FAF7

surface

#ECF3EE

border

#C7CDC9

text

#070F0A

muted

#7A7F7C

Preview Lab

Preview with #257B4E

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

Preview Lab → · Contrast checker → · Palette generator →