#256C9B#256C9B

#256C9B is a mid, moderate cyan. Relative luminance 0.135; OKLCH L 51.0% C 0.102 H 242.0°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX#256C9B
RGBrgb(37, 108, 155)
HSLhsl(204, 61%, 38%)
HSVhsv(204, 76%, 61%)
CMYKcmyk(76.1%, 30.3%, 0%, 39.2%)
CIE-LABlab(43.48, -5.28, -31.75)
CIE-LCHlch(43.48, 32.18, 260.55°)
OKLaboklab(51% -0.0477 -0.0899)
OKLCHoklch(51% 0.102 242)
XYZxyz(12.0396, 13.4836, 32.9721)
Luminance0.1348 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#256C9B #9B5425
analogous
#259B8F #256C9B #25319B
triadic
#256C9B #9B256C #6C9B25
tetradic
#256C9B #8F259B #9B5425 #319B25
square
#256C9B #8F259B #9B5425 #319B25
split-complementary
#256C9B #9B2531 #9B8F25
monochromatic
#0D2738 #194A6A #256C9B #318ECC #61A9D9

Accessibility & contrast

On white

5.68
#256C9B on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.70
#256C9B on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256C9B
5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##256C9B#FFFFFF#000000##FFFFFF
##256C9B1.005.683.705.68
#FFFFFF5.681.0021.001.00
#0000003.7021.001.0021.00
##FFFFFF5.681.0021.001.00

Color blindness preview

Protanopia (red-blind)
#566D9D
Deuteranopia (green-blind)
#46629A
Tritanopia (blue-blind)
#00787D
Achromatopsia (no color)
#676767

Design tokens & code

CSS
--color: #256c9b;
/* rgb */ color: rgb(37, 108, 155);
/* oklch */ color: oklch(51.0% 0.102 242.0);
Tailwind
colors: {
  custom: {
    50: '#7195b8',
    500: '#256c9b',
    950: '#000000',
  },
}
SCSS
$custom: #256c9b;
$custom-light: #7195b8;
$custom-dark: #000000;
JSON
{
  "hex": "#256c9b",
  "rgb": {
    "r": 37,
    "g": 108,
    "b": 155
  },
  "hsl": {
    "h": 203.898,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.50995,
    "c": 0.10175,
    "h": 242
  },
  "luminance": 0.13485
}

Semantic roles & 50–950 ramp

primary
#256C9B
secondary
#BF845D
accent
#8343E5
background
#F7F9FB
surface
#EDF1F6
border
#C8CBD0
text
#090D11
muted
#7B7E80

Preview Lab

Preview with #256C9B

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

Preview Lab → · Contrast checker → · Palette generator →

#256C9B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva