#256D7F#256D7F

#256D7F is a mid, moderate cyan. Relative luminance 0.129; OKLCH L 49.8% C 0.075 H 217.7°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#256D7F
RGB	rgb(37, 109, 127)
HSL	hsl(192, 55%, 32%)
HSV	hsv(192, 71%, 50%)
CMYK	cmyk(70.9%, 14.2%, 0%, 50.2%)
CIE-LAB	lab(42.55, -15.87, -16.45)
CIE-LCH	lch(42.55, 22.86, 226.03°)
OKLab	oklab(49.84% -0.0593 -0.0458)
OKLCH	oklch(49.84% 0.075 217.7)
XYZ	xyz(10.0608, 12.8618, 22.0269)
Luminance	0.1286 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256D7F #7F3725

analogous

#257F64 #256D7F #25407F

triadic

#256D7F #7F256D #6D7F25

tetradic

#256D7F #64257F #7F3725 #407F25

square

#256D7F #64257F #7F3725 #407F25

split-complementary

#256D7F #7F2540 #7F6425

monochromatic

#091C20 #174450 #256D7F #3396AE #52B4CD

Accessibility & contrast

On white

5.88

#256D7F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#256D7F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256D7F

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256D7F	#FFFFFF	#000000	##FFFFFF
##256D7F	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#616A80

Deuteranopia (green-blind)

#55607F

Tritanopia (blue-blind)

#007373

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #256d7f;
/* rgb */ color: rgb(37, 109, 127);
/* oklch */ color: oklch(49.8% 0.075 217.7);

Tailwind

colors: {
  custom: {
    50: '#6c97a4',
    500: '#256d7f',
    950: '#000000',
  },
}

SCSS

$custom: #256d7f;
$custom-light: #6c97a4;
$custom-dark: #000000;

JSON

{
  "hex": "#256d7f",
  "rgb": {
    "r": 37,
    "g": 109,
    "b": 127
  },
  "hsl": {
    "h": 192,
    "s": 54.878,
    "l": 32.157
  },
  "oklch": {
    "l": 0.49844,
    "c": 0.07498,
    "h": 217.7
  },
  "luminance": 0.12863
}

Semantic roles & 50–950 ramp

primary

#256D7F

secondary

#B1634F

accent

#674ADE

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080D0F

muted

#7B7E7F

Preview Lab

Preview with #256D7F

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

Preview Lab → · Contrast checker → · Palette generator →