#2337B0#2337B0

#2337B0 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.1% C 0.191 H 268.4°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX#2337B0
RGBrgb(35, 55, 176)
HSLhsl(231, 67%, 41%)
HSVhsv(231, 80%, 69%)
CMYKcmyk(80.1%, 68.8%, 0%, 31%)
CIE-LABlab(29.97, 37.06, -66.04)
CIE-LCHlch(29.97, 75.73, 299.30°)
OKLaboklab(41.12% -0.0053 -0.1913)
OKLCHoklch(41.12% 0.191 268.4)
XYZxyz(9.8931, 6.2231, 41.7457)
Luminance0.0622 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2337B0 #B09C23
analogous
#237EB0 #2337B0 #5523B0
triadic
#2337B0 #B02337 #37B023
tetradic
#2337B0 #B0237E #B09C23 #23B055
square
#2337B0 #B0237E #B09C23 #23B055
split-complementary
#2337B0 #B05523 #7EB023
monochromatic
#0F174A #19277D #2337B0 #394FD8 #6C7CE2

Accessibility & contrast

On white

9.35
#2337B0 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.24
#2337B0 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2337B0
9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2337B0#FFFFFF#000000##FFFFFF
##2337B01.009.352.249.35
#FFFFFF9.351.0021.001.00
#0000002.2421.001.0021.00
##FFFFFF9.351.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004DB4
Deuteranopia (green-blind)
#0040AE
Tritanopia (blue-blind)
#00586F
Achromatopsia (no color)
#474747

Design tokens & code

CSS
--color: #2337b0;
/* rgb */ color: rgb(35, 55, 176);
/* oklch */ color: oklch(41.1% 0.191 268.4);
Tailwind
colors: {
  custom: {
    50: '#776ec9',
    500: '#2337b0',
    950: '#000000',
  },
}
SCSS
$custom: #2337b0;
$custom-light: #776ec9;
$custom-dark: #000000;
JSON
{
  "hex": "#2337b0",
  "rgb": {
    "r": 35,
    "g": 55,
    "b": 176
  },
  "hsl": {
    "h": 231.489,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.41117,
    "c": 0.19134,
    "h": 268.4
  },
  "luminance": 0.06224
}

Semantic roles & 50–950 ramp

primary
#2337B0
secondary
#C8BA67
accent
#D13EEA
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0A0713
muted
#7C7A82

Preview Lab

Preview with #2337B0

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

Preview Lab → · Contrast checker → · Palette generator →

#2337B0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva