#4233B5#4233B5

#4233B5 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.9% C 0.194 H 279.5°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX#4233B5
RGBrgb(66, 51, 181)
HSLhsl(247, 56%, 45%)
HSVhsv(247, 72%, 71%)
CMYKcmyk(63.5%, 71.8%, 0%, 29%)
CIE-LABlab(31.49, 44.52, -66.45)
CIE-LCHlch(31.49, 79.98, 303.82°)
OKLaboklab(42.86% 0.0322 -0.1917)
OKLCHoklch(42.86% 0.194 279.5)
XYZxyz(11.7684, 6.8612, 44.4113)
Luminance0.0686 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4233B5 #A6B533
analogous
#3365B5 #4233B5 #8333B5
triadic
#4233B5 #B54233 #33B542
tetradic
#4233B5 #B53365 #A6B533 #33B583
square
#4233B5 #B53365 #A6B533 #33B583
split-complementary
#4233B5 #B58333 #65B533
monochromatic
#1F1856 #312685 #4233B5 #6456CF #9086DD

Accessibility & contrast

On white

8.85
#4233B5 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.37
#4233B5 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4233B5
8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4233B5#FFFFFF#000000##FFFFFF
##4233B51.008.852.378.85
#FFFFFF8.851.0021.001.00
#0000002.3721.001.0021.00
##FFFFFF8.851.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004FB9
Deuteranopia (green-blind)
#0045B3
Tritanopia (blue-blind)
#005770
Achromatopsia (no color)
#4A4A4A

Design tokens & code

CSS
--color: #4233b5;
/* rgb */ color: rgb(66, 51, 181);
/* oklch */ color: oklch(42.9% 0.194 279.5);
Tailwind
colors: {
  custom: {
    50: '#856dcc',
    500: '#4233b5',
    950: '#000000',
  },
}
SCSS
$custom: #4233b5;
$custom-light: #856dcc;
$custom-dark: #000000;
JSON
{
  "hex": "#4233b5",
  "rgb": {
    "r": 66,
    "g": 51,
    "b": 181
  },
  "hsl": {
    "h": 246.923,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.42859,
    "c": 0.19439,
    "h": 279.5
  },
  "luminance": 0.06862
}

Semantic roles & 50–950 ramp

primary
#4233B5
secondary
#BEC67D
accent
#DF48CE
background
#F8F6FC
surface
#F0EBF9
border
#CBC6D2
text
#0C0714
muted
#7D7A82

Preview Lab

Preview with #4233B5

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

Preview Lab → · Contrast checker → · Palette generator →

#4233B5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva