#256D9E#256D9E

#256D9E is a mid, moderate cyan. Relative luminance 0.138; OKLCH L 51.4% C 0.104 H 242.8°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#256D9E
RGB	rgb(37, 109, 158)
HSL	hsl(204, 62%, 38%)
HSV	hsv(204, 77%, 62%)
CMYK	cmyk(76.6%, 31%, 0%, 38%)
CIE-LAB	lab(43.94, -4.77, -32.80)
CIE-LCH	lch(43.94, 33.15, 261.72°)
OKLab	oklab(51.41% -0.0477 -0.0929)
OKLCH	oklch(51.41% 0.104 242.8)
XYZ	xyz(12.4007, 13.7978, 34.3508)
Luminance	0.1380 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256D9E #9E5625

analogous

#259E92 #256D9E #25309E

triadic

#256D9E #9E256D #6D9E25

tetradic

#256D9E #92259E #9E5625 #309E25

square

#256D9E #92259E #9E5625 #309E25

split-complementary

#256D9E #9E2530 #9E9225

monochromatic

#0E293B #194B6C #256D9E #318FCF #63AADA

Accessibility & contrast

On white

5.59

#256D9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#256D9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256D9E

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256D9E	#FFFFFF	#000000	##FFFFFF
##256D9E	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)

#566EA0

Deuteranopia (green-blind)

#46639D

Tritanopia (blue-blind)

#00797E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #256d9e;
/* rgb */ color: rgb(37, 109, 158);
/* oklch */ color: oklch(51.4% 0.104 242.8);

Tailwind

colors: {
  custom: {
    50: '#7196bb',
    500: '#256d9e',
    950: '#000000',
  },
}

SCSS

$custom: #256d9e;
$custom-light: #7196bb;
$custom-dark: #000000;

JSON

{
  "hex": "#256d9e",
  "rgb": {
    "r": 37,
    "g": 109,
    "b": 158
  },
  "hsl": {
    "h": 204.298,
    "s": 62.051,
    "l": 38.235
  },
  "oklch": {
    "l": 0.51407,
    "c": 0.10447,
    "h": 242.8
  },
  "luminance": 0.13799
}

Semantic roles & 50–950 ramp

primary

#256D9E

secondary

#C0865F

accent

#8443E5

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090D12

muted

#7B7E81

Preview Lab

Preview with #256D9E

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

Preview Lab → · Contrast checker → · Palette generator →