#256DAF#256DAF

#256DAF is a mid, vivid cyan. Relative luminance 0.144; OKLCH L 52.4% C 0.126 H 250.1°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX#256DAF
RGBrgb(37, 109, 175)
HSLhsl(209, 65%, 42%)
HSVhsv(209, 79%, 69%)
CMYKcmyk(78.9%, 37.7%, 0%, 31.4%)
CIE-LABlab(44.84, 1.63, -41.39)
CIE-LCHlch(44.84, 41.42, 272.25°)
OKLaboklab(52.4% -0.0428 -0.118)
OKLCHoklch(52.4% 0.126 250.1)
XYZxyz(13.9665, 14.4241, 42.5972)
Luminance0.1443 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#256DAF #AF6725
analogous
#25AFAC #256DAF #2528AF
triadic
#256DAF #AF256D #6DAF25
tetradic
#256DAF #AC25AF #AF6725 #28AF25
square
#256DAF #AC25AF #AF6725 #28AF25
split-complementary
#256DAF #AF2528 #AFAC25
monochromatic
#102E4A #1A4E7C #256DAF #3C8CD6 #6EAAE0

Accessibility & contrast

On white

5.41
#256DAF on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.89
#256DAF on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256DAF
5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##256DAF#FFFFFF#000000##FFFFFF
##256DAF1.005.413.895.41
#FFFFFF5.411.0021.001.00
#0000003.8921.001.0021.00
##FFFFFF5.411.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4E71B2
Deuteranopia (green-blind)
#3964AE
Tritanopia (blue-blind)
#007D85
Achromatopsia (no color)
#6A6A6A

Design tokens & code

CSS
--color: #256daf;
/* rgb */ color: rgb(37, 109, 175);
/* oklch */ color: oklch(52.4% 0.126 250.1);
Tailwind
colors: {
  custom: {
    50: '#7596c7',
    500: '#256daf',
    950: '#000000',
  },
}
SCSS
$custom: #256daf;
$custom-light: #7596c7;
$custom-dark: #000000;
JSON
{
  "hex": "#256daf",
  "rgb": {
    "r": 37,
    "g": 109,
    "b": 175
  },
  "hsl": {
    "h": 208.696,
    "s": 65.094,
    "l": 41.569
  },
  "oklch": {
    "l": 0.52402,
    "c": 0.12552,
    "h": 250.1
  },
  "luminance": 0.14426
}

Semantic roles & 50–950 ramp

primary
#256DAF
secondary
#C79669
accent
#9040E8
background
#F7F9FC
surface
#EEF1F8
border
#C9CBD1
text
#0A0D13
muted
#7C7E82

Preview Lab

Preview with #256DAF

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

Preview Lab → · Contrast checker → · Palette generator →

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