#257D4B#257D4B

#257D4B is a mid, moderate green. Relative luminance 0.156; OKLCH L 52.5% C 0.114 H 154.2°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#257D4B
RGB	rgb(37, 125, 75)
HSL	hsl(146, 54%, 32%)
HSV	hsv(146, 70%, 49%)
CMYK	cmyk(70.4%, 0%, 40%, 51%)
CIE-LAB	lab(46.40, -38.03, 19.93)
CIE-LCH	lch(46.40, 42.94, 152.34°)
OKLab	oklab(52.49% -0.1028 0.0498)
OKLCH	oklch(52.49% 0.114 154.2)
XYZ	xyz(9.3657, 15.5675, 9.1665)
Luminance	0.1557 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257D4B #7D2557

analogous

#2B7D25 #257D4B #257D77

triadic

#257D4B #4B257D #7D4B25

tetradic

#257D4B #252B7D #7D2557 #7D7725

square

#257D4B #252B7D #7D2557 #7D7725

split-complementary

#257D4B #77257D #7D252B

monochromatic

#091F12 #174E2F #257D4B #33AC67 #51CB86

Accessibility & contrast

On white

5.10

#257D4B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#257D4B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257D4B

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257D4B	#FFFFFF	#000000	##FFFFFF
##257D4B	1.00	5.10	4.11	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D7348

Deuteranopia (green-blind)

#726B4E

Tritanopia (blue-blind)

#007C70

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #257d4b;
/* rgb */ color: rgb(37, 125, 75);
/* oklch */ color: oklch(52.5% 0.114 154.2);

Tailwind

colors: {
  custom: {
    50: '#6ca37d',
    500: '#257d4b',
    950: '#000000',
  },
}

SCSS

$custom: #257d4b;
$custom-light: #6ca37d;
$custom-dark: #000000;

JSON

{
  "hex": "#257d4b",
  "rgb": {
    "r": 37,
    "g": 125,
    "b": 75
  },
  "hsl": {
    "h": 145.909,
    "s": 54.321,
    "l": 31.765
  },
  "oklch": {
    "l": 0.52492,
    "c": 0.11417,
    "h": 154.2
  },
  "luminance": 0.15569
}

Semantic roles & 50–950 ramp

primary

#257D4B

secondary

#AF4F85

accent

#4A9EDE

background

#F6FAF7

surface

#ECF4EE

border

#C7CEC9

text

#070F0A

muted

#7A7F7C

Preview Lab

Preview with #257D4B

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

Preview Lab → · Contrast checker → · Palette generator →