#256DB1#256DB1

#256DB1 is a mid, vivid cyan. Relative luminance 0.145; OKLCH L 52.5% C 0.128 H 250.7°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#256DB1
RGB	rgb(37, 109, 177)
HSL	hsl(209, 65%, 42%)
HSV	hsv(209, 79%, 69%)
CMYK	cmyk(79.1%, 38.4%, 0%, 30.6%)
CIE-LAB	lab(44.95, 2.39, -42.38)
CIE-LCH	lch(44.95, 42.45, 273.23°)
OKLab	oklab(52.53% -0.0423 -0.1209)
OKLCH	oklch(52.53% 0.128 250.7)
XYZ	xyz(14.1644, 14.5032, 43.6393)
Luminance	0.1451 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256DB1 #B16925

analogous

#25B1AF #256DB1 #2527B1

triadic

#256DB1 #B1256D #6DB125

tetradic

#256DB1 #AF25B1 #B16925 #27B125

square

#256DB1 #AF25B1 #B16925 #27B125

split-complementary

#256DB1 #B12527 #B1AF25

monochromatic

#102F4C #1A4E7E #256DB1 #3D8CD6 #6FAAE1

Accessibility & contrast

On white

5.38

#256DB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#256DB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256DB1

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256DB1	#FFFFFF	#000000	##FFFFFF
##256DB1	1.00	5.38	3.90	5.38
#FFFFFF	5.38	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D71B4

Deuteranopia (green-blind)

#3765B0

Tritanopia (blue-blind)

#007D86

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #256db1;
/* rgb */ color: rgb(37, 109, 177);
/* oklch */ color: oklch(52.5% 0.128 250.7);

Tailwind

colors: {
  custom: {
    50: '#7596c9',
    500: '#256db1',
    950: '#000000',
  },
}

SCSS

$custom: #256db1;
$custom-light: #7596c9;
$custom-dark: #000000;

JSON

{
  "hex": "#256db1",
  "rgb": {
    "r": 37,
    "g": 109,
    "b": 177
  },
  "hsl": {
    "h": 209.143,
    "s": 65.421,
    "l": 41.961
  },
  "oklch": {
    "l": 0.52526,
    "c": 0.12809,
    "h": 250.7
  },
  "luminance": 0.14505
}

Semantic roles & 50–950 ramp

primary

#256DB1

secondary

#C8986A

accent

#913FE8

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #256DB1

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

Preview Lab → · Contrast checker → · Palette generator →