#256BAF#256BAF

#256BAF is a mid, vivid cyan. Relative luminance 0.140; OKLCH L 51.9% C 0.128 H 251.3°. Best body text is #FFFFFF at 5.53:1 contrast (WCAG AA passes).

Color values

HEX#256BAF
RGBrgb(37, 107, 175)
HSLhsl(210, 65%, 42%)
HSVhsv(210, 79%, 69%)
CMYKcmyk(78.9%, 38.9%, 0%, 31.4%)
CIE-LABlab(44.24, 2.87, -42.34)
CIE-LCHlch(44.24, 42.44, 273.88°)
OKLaboklab(51.93% -0.041 -0.1208)
OKLCHoklch(51.93% 0.128 251.3)
XYZxyz(13.7556, 14.0022, 42.5268)
Luminance0.1400 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#256BAF #AF6925
analogous
#25AFAE #256BAF #2526AF
triadic
#256BAF #AF256B #6BAF25
tetradic
#256BAF #AE25AF #AF6925 #26AF25
square
#256BAF #AE25AF #AF6925 #26AF25
split-complementary
#256BAF #AF2526 #AFAE25
monochromatic
#102D4A #1A4C7C #256BAF #3C8AD6 #6EA8E0

Accessibility & contrast

On white

5.53
#256BAF on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.80
#256BAF on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256BAF
5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##256BAF#FFFFFF#000000##FFFFFF
##256BAF1.005.533.805.53
#FFFFFF5.531.0021.001.00
#0000003.8021.001.0021.00
##FFFFFF5.531.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4B6FB2
Deuteranopia (green-blind)
#3563AE
Tritanopia (blue-blind)
#007B84
Achromatopsia (no color)
#696969

Design tokens & code

CSS
--color: #256baf;
/* rgb */ color: rgb(37, 107, 175);
/* oklch */ color: oklch(51.9% 0.128 251.3);
Tailwind
colors: {
  custom: {
    50: '#7594c7',
    500: '#256baf',
    950: '#000000',
  },
}
SCSS
$custom: #256baf;
$custom-light: #7594c7;
$custom-dark: #000000;
JSON
{
  "hex": "#256baf",
  "rgb": {
    "r": 37,
    "g": 107,
    "b": 175
  },
  "hsl": {
    "h": 209.565,
    "s": 65.094,
    "l": 41.569
  },
  "oklch": {
    "l": 0.51933,
    "c": 0.1276,
    "h": 251.3
  },
  "luminance": 0.14004
}

Semantic roles & 50–950 ramp

primary
#256BAF
secondary
#C79769
accent
#9340E8
background
#F7F9FC
surface
#EEF1F8
border
#C9CBD1
text
#0A0D13
muted
#7C7E82

Preview Lab

Preview with #256BAF

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

Preview Lab → · Contrast checker → · Palette generator →

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