#256CAF#256CAF

#256CAF is a mid, vivid cyan. Relative luminance 0.142; OKLCH L 52.2% C 0.127 H 250.7°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX#256CAF
RGBrgb(37, 108, 175)
HSLhsl(209, 65%, 42%)
HSVhsv(209, 79%, 69%)
CMYKcmyk(78.9%, 38.3%, 0%, 31.4%)
CIE-LABlab(44.54, 2.25, -41.86)
CIE-LCHlch(44.54, 41.92, 273.08°)
OKLaboklab(52.17% -0.0419 -0.1194)
OKLCHoklch(52.17% 0.127 250.7)
XYZxyz(13.8604, 14.2119, 42.5618)
Luminance0.1421 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#256CAF #AF6825
analogous
#25AFAD #256CAF #2527AF
triadic
#256CAF #AF256C #6CAF25
tetradic
#256CAF #AD25AF #AF6825 #27AF25
square
#256CAF #AD25AF #AF6825 #27AF25
split-complementary
#256CAF #AF2527 #AFAD25
monochromatic
#102E4A #1A4D7C #256CAF #3C8BD6 #6EA9E0

Accessibility & contrast

On white

5.46
#256CAF on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.84
#256CAF on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256CAF
5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##256CAF#FFFFFF#000000##FFFFFF
##256CAF1.005.463.845.46
#FFFFFF5.461.0021.001.00
#0000003.8421.001.0021.00
##FFFFFF5.461.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4C70B2
Deuteranopia (green-blind)
#3764AE
Tritanopia (blue-blind)
#007C85
Achromatopsia (no color)
#696969

Design tokens & code

CSS
--color: #256caf;
/* rgb */ color: rgb(37, 108, 175);
/* oklch */ color: oklch(52.2% 0.127 250.7);
Tailwind
colors: {
  custom: {
    50: '#7595c7',
    500: '#256caf',
    950: '#000000',
  },
}
SCSS
$custom: #256caf;
$custom-light: #7595c7;
$custom-dark: #000000;
JSON
{
  "hex": "#256caf",
  "rgb": {
    "r": 37,
    "g": 108,
    "b": 175
  },
  "hsl": {
    "h": 209.13,
    "s": 65.094,
    "l": 41.569
  },
  "oklch": {
    "l": 0.52168,
    "c": 0.12656,
    "h": 250.7
  },
  "luminance": 0.14214
}

Semantic roles & 50–950 ramp

primary
#256CAF
secondary
#C79769
accent
#9140E8
background
#F7F9FC
surface
#EEF1F8
border
#C9CBD1
text
#0A0D13
muted
#7C7E82

Preview Lab

Preview with #256CAF

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

Preview Lab → · Contrast checker → · Palette generator →

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