#256AAF#256AAF

#256AAF is a mid, vivid cyan. Relative luminance 0.138; OKLCH L 51.7% C 0.129 H 251.8°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#256AAF
RGB	rgb(37, 106, 175)
HSL	hsl(210, 65%, 42%)
HSV	hsv(210, 79%, 69%)
CMYK	cmyk(78.9%, 39.4%, 0%, 31.4%)
CIE-LAB	lab(43.94, 3.50, -42.81)
CIE-LCH	lch(43.94, 42.96, 274.67°)
OKLab	oklab(51.7% -0.0401 -0.1222)
OKLCH	oklch(51.7% 0.129 251.8)
XYZ	xyz(13.6519, 13.7949, 42.4923)
Luminance	0.1380 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256AAF #AF6A25

analogous

#25AFAF #256AAF #2525AF

triadic

#256AAF #AF256A #6AAF25

tetradic

#256AAF #AF25AF #AF6A25 #25AF25

square

#256AAF #AF25AF #AF6A25 #25AF25

split-complementary

#256AAF #AF2525 #AFAF25

monochromatic

#102D4A #1A4B7C #256AAF #3C89D6 #6EA7E0

Accessibility & contrast

On white

5.59

#256AAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#256AAF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256AAF

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256AAF	#FFFFFF	#000000	##FFFFFF
##256AAF	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#496FB2

Deuteranopia (green-blind)

#3362AE

Tritanopia (blue-blind)

#007A84

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #256aaf;
/* rgb */ color: rgb(37, 106, 175);
/* oklch */ color: oklch(51.7% 0.129 251.8);

Tailwind

colors: {
  custom: {
    50: '#7594c7',
    500: '#256aaf',
    950: '#000000',
  },
}

SCSS

$custom: #256aaf;
$custom-light: #7594c7;
$custom-dark: #000000;

JSON

{
  "hex": "#256aaf",
  "rgb": {
    "r": 37,
    "g": 106,
    "b": 175
  },
  "hsl": {
    "h": 210,
    "s": 65.094,
    "l": 41.569
  },
  "oklch": {
    "l": 0.517,
    "c": 0.12866,
    "h": 251.8
  },
  "luminance": 0.13797
}

Semantic roles & 50–950 ramp

primary

#256AAF

secondary

#C79869

accent

#9440E8

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #256AAF

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

Preview Lab → · Contrast checker → · Palette generator →