#2633B1#2633B1

#2633B1 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.7% C 0.196 H 269.8°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX#2633B1
RGBrgb(38, 51, 177)
HSLhsl(234, 65%, 42%)
HSVhsv(234, 79%, 69%)
CMYKcmyk(78.5%, 71.2%, 0%, 30.6%)
CIE-LABlab(29.29, 40.15, -67.74)
CIE-LCHlch(29.29, 78.75, 300.66°)
OKLaboklab(40.7% -0.0007 -0.1962)
OKLCHoklch(40.7% 0.196 269.8)
XYZxyz(9.9162, 5.9529, 42.2129)
Luminance0.0595 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2633B1 #B1A426
analogous
#2679B1 #2633B1 #5E26B1
triadic
#2633B1 #B12633 #33B126
tetradic
#2633B1 #B12679 #B1A426 #26B15E
square
#2633B1 #B12679 #B1A426 #26B15E
split-complementary
#2633B1 #B15E26 #79B126
monochromatic
#10164C #1B247F #2633B1 #3F4DD6 #717BE0

Accessibility & contrast

On white

9.59
#2633B1 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.19
#2633B1 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2633B1
9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2633B1#FFFFFF#000000##FFFFFF
##2633B11.009.592.199.59
#FFFFFF9.591.0021.001.00
#0000002.1921.001.0021.00
##FFFFFF9.591.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004CB5
Deuteranopia (green-blind)
#003EAF
Tritanopia (blue-blind)
#00576E
Achromatopsia (no color)
#454545

Design tokens & code

CSS
--color: #2633b1;
/* rgb */ color: rgb(38, 51, 177);
/* oklch */ color: oklch(40.7% 0.196 269.8);
Tailwind
colors: {
  custom: {
    50: '#796bca',
    500: '#2633b1',
    950: '#000000',
  },
}
SCSS
$custom: #2633b1;
$custom-light: #796bca;
$custom-dark: #000000;
JSON
{
  "hex": "#2633b1",
  "rgb": {
    "r": 38,
    "g": 51,
    "b": 177
  },
  "hsl": {
    "h": 234.388,
    "s": 64.651,
    "l": 42.157
  },
  "oklch": {
    "l": 0.40696,
    "c": 0.19618,
    "h": 269.8
  },
  "luminance": 0.05954
}

Semantic roles & 50–950 ramp

primary
#2633B1
secondary
#C7BF6B
accent
#D840E8
background
#F8F6FC
surface
#EFEBF8
border
#CAC6D1
text
#0B0713
muted
#7C7A82

Preview Lab

Preview with #2633B1

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

Preview Lab → · Contrast checker → · Palette generator →

#2633B1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva