#256399#256399

#256399 is a mid, moderate cyan. Relative luminance 0.116; OKLCH L 48.7% C 0.107 H 248.4°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX#256399
RGBrgb(37, 99, 153)
HSLhsl(208, 61%, 37%)
HSVhsv(208, 76%, 60%)
CMYKcmyk(75.8%, 35.3%, 0%, 40%)
CIE-LABlab(40.60, -0.50, -35.10)
CIE-LCHlch(40.60, 35.11, 269.18°)
OKLaboklab(48.69% -0.0395 -0.0998)
OKLCHoklch(48.69% 0.107 248.4)
XYZxyz(10.9724, 11.6156, 31.7946)
Luminance0.1162 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#256399 #995B25
analogous
#259995 #256399 #252999
triadic
#256399 #992563 #639925
tetradic
#256399 #952599 #995B25 #299925
square
#256399 #952599 #995B25 #299925
split-complementary
#256399 #992529 #999525
monochromatic
#0D2336 #194368 #256399 #3183CA #60A0D9

Accessibility & contrast

On white

6.32
#256399 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.32
#256399 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256399
6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##256399#FFFFFF#000000##FFFFFF
##2563991.006.323.326.32
#FFFFFF6.321.0021.001.00
#0000003.3221.001.0021.00
##FFFFFF6.321.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4A669B
Deuteranopia (green-blind)
#395B98
Tritanopia (blue-blind)
#007077
Achromatopsia (no color)
#606060

Design tokens & code

CSS
--color: #256399;
/* rgb */ color: rgb(37, 99, 153);
/* oklch */ color: oklch(48.7% 0.107 248.4);
Tailwind
colors: {
  custom: {
    50: '#708fb7',
    500: '#256399',
    950: '#000000',
  },
}
SCSS
$custom: #256399;
$custom-light: #708fb7;
$custom-dark: #000000;
JSON
{
  "hex": "#256399",
  "rgb": {
    "r": 37,
    "g": 99,
    "b": 153
  },
  "hsl": {
    "h": 207.931,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.48687,
    "c": 0.1073,
    "h": 248.4
  },
  "luminance": 0.11617
}

Semantic roles & 50–950 ramp

primary
#256399
secondary
#BE8A5C
accent
#8E44E4
background
#F7F8FB
surface
#EDF0F6
border
#C8CBD0
text
#090C11
muted
#7B7D80

Preview Lab

Preview with #256399

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

Preview Lab → · Contrast checker → · Palette generator →

#256399 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva