#256E8B#256E8B

#256E8B is a mid, moderate cyan. Relative luminance 0.134; OKLCH L 50.7% C 0.084 H 228.5°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#256E8B
RGB	rgb(37, 110, 139)
HSL	hsl(197, 58%, 35%)
HSV	hsv(197, 73%, 55%)
CMYK	cmyk(73.4%, 20.9%, 0%, 45.5%)
CIE-LAB	lab(43.37, -12.27, -22.39)
CIE-LCH	lch(43.37, 25.54, 241.28°)
OKLab	oklab(50.66% -0.0555 -0.0628)
OKLCH	oklch(50.66% 0.084 228.5)
XYZ	xyz(10.9972, 13.4080, 26.4295)
Luminance	0.1341 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256E8B #8B4225

analogous

#258B75 #256E8B #253B8B

triadic

#256E8B #8B256E #6E8B25

tetradic

#256E8B #75258B #8B4225 #3B8B25

square

#256E8B #75258B #8B4225 #3B8B25

split-complementary

#256E8B #8B253B #8B7525

monochromatic

#0B222A #18485B #256E8B #3294BB #58B0D3

Accessibility & contrast

On white

5.70

#256E8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#256E8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256E8B

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256E8B	#FFFFFF	#000000	##FFFFFF
##256E8B	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F6C8C

Deuteranopia (green-blind)

#51628B

Tritanopia (blue-blind)

#007678

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #256e8b;
/* rgb */ color: rgb(37, 110, 139);
/* oklch */ color: oklch(50.7% 0.084 228.5);

Tailwind

colors: {
  custom: {
    50: '#6e97ad',
    500: '#256e8b',
    950: '#000000',
  },
}

SCSS

$custom: #256e8b;
$custom-light: #6e97ad;
$custom-dark: #000000;

JSON

{
  "hex": "#256e8b",
  "rgb": {
    "r": 37,
    "g": 110,
    "b": 139
  },
  "hsl": {
    "h": 197.059,
    "s": 57.955,
    "l": 34.51
  },
  "oklch": {
    "l": 0.50663,
    "c": 0.08382,
    "h": 228.5
  },
  "luminance": 0.13409
}

Semantic roles & 50–950 ramp

primary

#256E8B

secondary

#B77155

accent

#7347E1

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080D10

muted

#7B7E7F

Preview Lab

Preview with #256E8B

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

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