#256CB0#256CB0

#256CB0 is a mid, vivid cyan. Relative luminance 0.143; OKLCH L 52.2% C 0.128 H 251.0°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#256CB0
RGB	rgb(37, 108, 176)
HSL	hsl(209, 65%, 42%)
HSV	hsv(209, 79%, 69%)
CMYK	cmyk(79%, 38.6%, 0%, 31%)
CIE-LAB	lab(44.59, 2.63, -42.36)
CIE-LCH	lch(44.59, 42.44, 273.55°)
OKLab	oklab(52.23% -0.0416 -0.1209)
OKLCH	oklch(52.23% 0.128 251)
XYZ	xyz(13.9590, 14.2514, 43.0810)
Luminance	0.1425 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256CB0 #B06925

analogous

#25B0AF #256CB0 #2526B0

triadic

#256CB0 #B0256C #6CB025

tetradic

#256CB0 #AF25B0 #B06925 #26B025

square

#256CB0 #AF25B0 #B06925 #26B025

split-complementary

#256CB0 #B02526 #B0AF25

monochromatic

#102E4B #1A4D7D #256CB0 #3C8BD6 #6FA9E1

Accessibility & contrast

On white

5.45

#256CB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#256CB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256CB0

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256CB0	#FFFFFF	#000000	##FFFFFF
##256CB0	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C70B3

Deuteranopia (green-blind)

#3664AF

Tritanopia (blue-blind)

#007C85

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #256cb0;
/* rgb */ color: rgb(37, 108, 176);
/* oklch */ color: oklch(52.2% 0.128 251.0);

Tailwind

colors: {
  custom: {
    50: '#7595c8',
    500: '#256cb0',
    950: '#000000',
  },
}

SCSS

$custom: #256cb0;
$custom-light: #7595c8;
$custom-dark: #000000;

JSON

{
  "hex": "#256cb0",
  "rgb": {
    "r": 37,
    "g": 108,
    "b": 176
  },
  "hsl": {
    "h": 209.353,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.5223,
    "c": 0.12784,
    "h": 251
  },
  "luminance": 0.14253
}

Semantic roles & 50–950 ramp

primary

#256CB0

secondary

#C7976A

accent

#9240E8

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #256CB0

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

Preview Lab → · Contrast checker → · Palette generator →