#256B40#256B40

#256B40 is a mid, moderate green. Relative luminance 0.113; OKLCH L 47.2% C 0.099 H 153.2°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#256B40
RGB	rgb(37, 107, 64)
HSL	hsl(143, 49%, 28%)
HSV	hsv(143, 65%, 42%)
CMYK	cmyk(65.4%, 0%, 40.2%, 58%)
CIE-LAB	lab(40.05, -32.54, 17.83)
CIE-LCH	lch(40.05, 37.10, 151.28°)
OKLab	oklab(47.2% -0.0881 0.0445)
OKLCH	oklch(47.2% 0.099 153.2)
XYZ	xyz(6.9455, 11.2782, 6.6604)
Luminance	0.1128 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256B40 #6B2550

analogous

#2D6B25 #256B40 #256B63

triadic

#256B40 #40256B #6B4025

tetradic

#256B40 #252D6B #6B2550 #6B6325

square

#256B40 #252D6B #6B2550 #6B6325

split-complementary

#256B40 #63256B #6B252D

monochromatic

#08170E #153E25 #256B40 #35985B #4AC078

Accessibility & contrast

On white

6.45

#256B40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#256B40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256B40

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256B40	#FFFFFF	#000000	##FFFFFF
##256B40	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B623D

Deuteranopia (green-blind)

#625C43

Tritanopia (blue-blind)

#096A60

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #256b40;
/* rgb */ color: rgb(37, 107, 64);
/* oklch */ color: oklch(47.2% 0.099 153.2);

Tailwind

colors: {
  custom: {
    50: '#689675',
    500: '#256b40',
    950: '#000000',
  },
}

SCSS

$custom: #256b40;
$custom-light: #689675;
$custom-dark: #000000;

JSON

{
  "hex": "#256b40",
  "rgb": {
    "r": 37,
    "g": 107,
    "b": 64
  },
  "hsl": {
    "h": 143.143,
    "s": 48.611,
    "l": 28.235
  },
  "oklch": {
    "l": 0.47197,
    "c": 0.09867,
    "h": 153.2
  },
  "luminance": 0.11279
}

Semantic roles & 50–950 ramp

primary

#256B40

secondary

#9E4E7F

accent

#50A4D8

background

#F6F9F7

surface

#EBF2ED

border

#C6CCC8

text

#070D08

muted

#7A7E7B

Preview Lab

Preview with #256B40

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

Preview Lab → · Contrast checker → · Palette generator →