#23639B#23639B

#23639B is a mid, moderate cyan. Relative luminance 0.116; OKLCH L 48.7% C 0.111 H 248.7°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX#23639B
RGBrgb(35, 99, 155)
HSLhsl(208, 63%, 37%)
HSVhsv(208, 77%, 61%)
CMYKcmyk(77.4%, 36.1%, 0%, 39.2%)
CIE-LABlab(40.65, -0.00, -36.22)
CIE-LCHlch(40.65, 36.22, 270.00°)
OKLaboklab(48.74% -0.0401 -0.1031)
OKLCHoklch(48.74% 0.111 248.7)
XYZxyz(11.0691, 11.6463, 32.6686)
Luminance0.1165 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#23639B #9B5B23
analogous
#239B97 #23639B #23279B
triadic
#23639B #9B2363 #639B23
tetradic
#23639B #97239B #9B5B23 #279B23
square
#23639B #97239B #9B5B23 #279B23
split-complementary
#23639B #9B2327 #9B9723
monochromatic
#0C2337 #184369 #23639B #2E83CD #5EA0DB

Accessibility & contrast

On white

6.31
#23639B on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.33
#23639B on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #23639B
6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##23639B#FFFFFF#000000##FFFFFF
##23639B1.006.313.336.31
#FFFFFF6.311.0021.001.00
#0000003.3321.001.0021.00
##FFFFFF6.311.0021.001.00

Color blindness preview

Protanopia (red-blind)
#49669D
Deuteranopia (green-blind)
#375B9A
Tritanopia (blue-blind)
#007077
Achromatopsia (no color)
#606060

Design tokens & code

CSS
--color: #23639b;
/* rgb */ color: rgb(35, 99, 155);
/* oklch */ color: oklch(48.7% 0.111 248.7);
Tailwind
colors: {
  custom: {
    50: '#708fb9',
    500: '#23639b',
    950: '#000000',
  },
}
SCSS
$custom: #23639b;
$custom-light: #708fb9;
$custom-dark: #000000;
JSON
{
  "hex": "#23639b",
  "rgb": {
    "r": 35,
    "g": 99,
    "b": 155
  },
  "hsl": {
    "h": 208,
    "s": 63.158,
    "l": 37.255
  },
  "oklch": {
    "l": 0.48744,
    "c": 0.11058,
    "h": 248.7
  },
  "luminance": 0.11648
}

Semantic roles & 50–950 ramp

primary
#23639B
secondary
#BF8A5A
accent
#8E42E6
background
#F7F8FB
surface
#EDF0F6
border
#C8CBD0
text
#090C11
muted
#7B7D80

Preview Lab

Preview with #23639B

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

Preview Lab → · Contrast checker → · Palette generator →

#23639B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva