#256DAF#256DAF

#256DAF is a mid, vivid cyan. Relative luminance 0.144; OKLCH L 52.4% C 0.126 H 250.1°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#256DAF
RGB	rgb(37, 109, 175)
HSL	hsl(209, 65%, 42%)
HSV	hsv(209, 79%, 69%)
CMYK	cmyk(78.9%, 37.7%, 0%, 31.4%)
CIE-LAB	lab(44.84, 1.63, -41.39)
CIE-LCH	lch(44.84, 41.42, 272.25°)
OKLab	oklab(52.4% -0.0428 -0.118)
OKLCH	oklch(52.4% 0.126 250.1)
XYZ	xyz(13.9665, 14.4241, 42.5972)
Luminance	0.1443 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256DAF #AF6725

analogous

#25AFAC #256DAF #2528AF

triadic

#256DAF #AF256D #6DAF25

tetradic

#256DAF #AC25AF #AF6725 #28AF25

square

#256DAF #AC25AF #AF6725 #28AF25

split-complementary

#256DAF #AF2528 #AFAC25

monochromatic

#102E4A #1A4E7C #256DAF #3C8CD6 #6EAAE0

Accessibility & contrast

On white

5.41

#256DAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#256DAF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256DAF

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256DAF	#FFFFFF	#000000	##FFFFFF
##256DAF	1.00	5.41	3.89	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E71B2

Deuteranopia (green-blind)

#3964AE

Tritanopia (blue-blind)

#007D85

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #256daf;
/* rgb */ color: rgb(37, 109, 175);
/* oklch */ color: oklch(52.4% 0.126 250.1);

Tailwind

colors: {
  custom: {
    50: '#7596c7',
    500: '#256daf',
    950: '#000000',
  },
}

SCSS

$custom: #256daf;
$custom-light: #7596c7;
$custom-dark: #000000;

JSON

{
  "hex": "#256daf",
  "rgb": {
    "r": 37,
    "g": 109,
    "b": 175
  },
  "hsl": {
    "h": 208.696,
    "s": 65.094,
    "l": 41.569
  },
  "oklch": {
    "l": 0.52402,
    "c": 0.12552,
    "h": 250.1
  },
  "luminance": 0.14426
}

Semantic roles & 50–950 ramp

primary

#256DAF

secondary

#C79669

accent

#9040E8

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #256DAF

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

Preview Lab → · Contrast checker → · Palette generator →