#2663B3#2663B3

#2663B3 is a mid, vivid cyan. Relative luminance 0.126; OKLCH L 50.4% C 0.141 H 256.7°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX#2663B3
RGBrgb(38, 99, 179)
HSLhsl(214, 65%, 43%)
HSVhsv(214, 79%, 70%)
CMYKcmyk(78.8%, 44.7%, 0%, 29.8%)
CIE-LABlab(42.14, 9.61, -48.03)
CIE-LCHlch(42.14, 48.98, 281.31°)
OKLaboklab(50.38% -0.0326 -0.1377)
OKLCHoklch(50.38% 0.142 256.7)
XYZxyz(13.3948, 12.5888, 44.3630)
Luminance0.1259 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2663B3 #B37626
analogous
#26A9B3 #2663B3 #3026B3
triadic
#2663B3 #B32663 #63B326
tetradic
#2663B3 #B326A9 #B37626 #26B330
square
#2663B3 #B326A9 #B37626 #26B330
split-complementary
#2663B3 #B33026 #A9B326
monochromatic
#112B4E #1B4781 #2663B3 #4081D6 #72A2E1

Accessibility & contrast

On white

5.97
#2663B3 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.52
#2663B3 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2663B3
5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2663B3#FFFFFF#000000##FFFFFF
##2663B31.005.973.525.97
#FFFFFF5.971.0021.001.00
#0000003.5221.001.0021.00
##FFFFFF5.971.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3A6AB6
Deuteranopia (green-blind)
#1C5EB1
Tritanopia (blue-blind)
#007682
Achromatopsia (no color)
#636363

Design tokens & code

CSS
--color: #2663b3;
/* rgb */ color: rgb(38, 99, 179);
/* oklch */ color: oklch(50.4% 0.141 256.7);
Tailwind
colors: {
  custom: {
    50: '#768eca',
    500: '#2663b3',
    950: '#000000',
  },
}
SCSS
$custom: #2663b3;
$custom-light: #768eca;
$custom-dark: #000000;
JSON
{
  "hex": "#2663b3",
  "rgb": {
    "r": 38,
    "g": 99,
    "b": 179
  },
  "hsl": {
    "h": 214.043,
    "s": 64.977,
    "l": 42.549
  },
  "oklch": {
    "l": 0.50384,
    "c": 0.1415,
    "h": 256.7
  },
  "luminance": 0.1259
}

Semantic roles & 50–950 ramp

primary
#2663B3
secondary
#C8A16D
accent
#9F40E8
background
#F7F8FC
surface
#EEF0F8
border
#C9CBD1
text
#0A0C13
muted
#7C7D82

Preview Lab

Preview with #2663B3

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

Preview Lab → · Contrast checker → · Palette generator →

#2663B3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva