#256CB1#256CB1

#256CB1 is a mid, vivid cyan. Relative luminance 0.143; OKLCH L 52.3% C 0.129 H 251.3°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#256CB1
RGB	rgb(37, 108, 177)
HSL	hsl(210, 65%, 42%)
HSV	hsv(210, 79%, 69%)
CMYK	cmyk(79.1%, 39%, 0%, 30.6%)
CIE-LAB	lab(44.65, 3.01, -42.85)
CIE-LCH	lch(44.65, 42.96, 274.02°)
OKLab	oklab(52.29% -0.0414 -0.1223)
OKLCH	oklch(52.29% 0.129 251.3)
XYZ	xyz(14.0583, 14.2911, 43.6040)
Luminance	0.1429 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256CB1 #B16A25

analogous

#25B1B0 #256CB1 #2526B1

triadic

#256CB1 #B1256C #6CB125

tetradic

#256CB1 #B025B1 #B16A25 #26B125

square

#256CB1 #B025B1 #B16A25 #26B125

split-complementary

#256CB1 #B12526 #B1B025

monochromatic

#102E4C #1A4D7E #256CB1 #3D8BD6 #6FA9E1

Accessibility & contrast

On white

5.44

#256CB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#256CB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256CB1

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256CB1	#FFFFFF	#000000	##FFFFFF
##256CB1	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B71B4

Deuteranopia (green-blind)

#3564B0

Tritanopia (blue-blind)

#007C86

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #256cb1;
/* rgb */ color: rgb(37, 108, 177);
/* oklch */ color: oklch(52.3% 0.129 251.3);

Tailwind

colors: {
  custom: {
    50: '#7595c9',
    500: '#256cb1',
    950: '#000000',
  },
}

SCSS

$custom: #256cb1;
$custom-light: #7595c9;
$custom-dark: #000000;

JSON

{
  "hex": "#256cb1",
  "rgb": {
    "r": 37,
    "g": 108,
    "b": 177
  },
  "hsl": {
    "h": 209.571,
    "s": 65.421,
    "l": 41.961
  },
  "oklch": {
    "l": 0.52292,
    "c": 0.12913,
    "h": 251.3
  },
  "luminance": 0.14293
}

Semantic roles & 50–950 ramp

primary

#256CB1

secondary

#C8986A

accent

#933FE8

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #256CB1

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

Preview Lab → · Contrast checker → · Palette generator →