#256D9A#256D9A

#256D9A is a mid, moderate cyan. Relative luminance 0.137; OKLCH L 51.2% C 0.100 H 240.6°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX#256D9A
RGBrgb(37, 109, 154)
HSLhsl(203, 61%, 37%)
HSVhsv(203, 76%, 60%)
CMYKcmyk(76%, 29.2%, 0%, 39.6%)
CIE-LABlab(43.74, -6.26, -30.74)
CIE-LCHlch(43.74, 31.37, 258.50°)
OKLaboklab(51.19% -0.0491 -0.0869)
OKLCHoklch(51.19% 0.1 240.6)
XYZxyz(12.0620, 13.6623, 32.5670)
Luminance0.1366 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#256D9A #9A5225
analogous
#259A8D #256D9A #25329A
triadic
#256D9A #9A256D #6D9A25
tetradic
#256D9A #8D259A #9A5225 #329A25
square
#256D9A #8D259A #9A5225 #329A25
split-complementary
#256D9A #9A2532 #9A8D25
monochromatic
#0D2737 #194A69 #256D9A #3190CB #60ABD9

Accessibility & contrast

On white

5.63
#256D9A on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.73
#256D9A on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256D9A
5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##256D9A#FFFFFF#000000##FFFFFF
##256D9A1.005.633.735.63
#FFFFFF5.631.0021.001.00
#0000003.7321.001.0021.00
##FFFFFF5.631.0021.001.00

Color blindness preview

Protanopia (red-blind)
#586E9C
Deuteranopia (green-blind)
#486299
Tritanopia (blue-blind)
#00787D
Achromatopsia (no color)
#676767

Design tokens & code

CSS
--color: #256d9a;
/* rgb */ color: rgb(37, 109, 154);
/* oklch */ color: oklch(51.2% 0.100 240.6);
Tailwind
colors: {
  custom: {
    50: '#7196b8',
    500: '#256d9a',
    950: '#000000',
  },
}
SCSS
$custom: #256d9a;
$custom-light: #7196b8;
$custom-dark: #000000;
JSON
{
  "hex": "#256d9a",
  "rgb": {
    "r": 37,
    "g": 109,
    "b": 154
  },
  "hsl": {
    "h": 203.077,
    "s": 61.257,
    "l": 37.451
  },
  "oklch": {
    "l": 0.51186,
    "c": 0.09981,
    "h": 240.6
  },
  "luminance": 0.13664
}

Semantic roles & 50–950 ramp

primary
#256D9A
secondary
#BE825D
accent
#8143E4
background
#F7F9FB
surface
#EDF2F6
border
#C8CCD0
text
#090D11
muted
#7B7E80

Preview Lab

Preview with #256D9A

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

Preview Lab → · Contrast checker → · Palette generator →

#256D9A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva