#234BB1#234BB1

#234BB1 is a dark, vivid blue. Relative luminance 0.086; OKLCH L 45.0% C 0.169 H 264.3°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX#234BB1
RGBrgb(35, 75, 177)
HSLhsl(223, 67%, 42%)
HSVhsv(223, 80%, 69%)
CMYKcmyk(80.2%, 57.6%, 0%, 30.6%)
CIE-LABlab(35.13, 24.33, -58.19)
CIE-LCHlch(35.13, 63.07, 292.69°)
OKLaboklab(44.96% -0.0167 -0.1681)
OKLCHoklch(44.96% 0.169 264.3)
XYZxyz(11.1422, 8.5625, 42.6519)
Luminance0.0856 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#234BB1 #B18923
analogous
#2392B1 #234BB1 #4223B1
triadic
#234BB1 #B1234B #4BB123
tetradic
#234BB1 #B12392 #B18923 #23B142
square
#234BB1 #B12392 #B18923 #23B142
split-complementary
#234BB1 #B14223 #92B123
monochromatic
#0F204B #19357E #234BB1 #3966D8 #6C8EE2

Accessibility & contrast

On white

7.74
#234BB1 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.71
#234BB1 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #234BB1
7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##234BB1#FFFFFF#000000##FFFFFF
##234BB11.007.742.717.74
#FFFFFF7.741.0021.001.00
#0000002.7121.001.0021.00
##FFFFFF7.741.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0059B4
Deuteranopia (green-blind)
#004CAF
Tritanopia (blue-blind)
#006576
Achromatopsia (no color)
#535353

Design tokens & code

CSS
--color: #234bb1;
/* rgb */ color: rgb(35, 75, 177);
/* oklch */ color: oklch(45.0% 0.169 264.3);
Tailwind
colors: {
  custom: {
    50: '#767cc9',
    500: '#234bb1',
    950: '#000000',
  },
}
SCSS
$custom: #234bb1;
$custom-light: #767cc9;
$custom-dark: #000000;
JSON
{
  "hex": "#234bb1",
  "rgb": {
    "r": 35,
    "g": 75,
    "b": 177
  },
  "hsl": {
    "h": 223.099,
    "s": 66.981,
    "l": 41.569
  },
  "oklch": {
    "l": 0.44961,
    "c": 0.1689,
    "h": 264.3
  },
  "luminance": 0.08564
}

Semantic roles & 50–950 ramp

primary
#234BB1
secondary
#C8AD68
accent
#B93EEA
background
#F7F7FC
surface
#EEEEF8
border
#C9C9D1
text
#0A0913
muted
#7C7B82

Preview Lab

Preview with #234BB1

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

Preview Lab → · Contrast checker → · Palette generator →

#234BB1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva