#2333A9#2333A9

#2333A9 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.7% C 0.187 H 269.2°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#2333A9
RGB	rgb(35, 51, 169)
HSL	hsl(233, 66%, 40%)
HSV	hsv(233, 79%, 66%)
CMYK	cmyk(79.3%, 69.8%, 0%, 33.7%)
CIE-LAB	lab(28.35, 37.04, -64.51)
CIE-LCH	lch(28.35, 74.38, 299.86°)
OKLab	oklab(39.74% -0.0028 -0.1868)
OKLCH	oklch(39.74% 0.187 269.2)
XYZ	xyz(9.0359, 5.5885, 38.1309)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2333A9 #A99923

analogous

#2376A9 #2333A9 #5623A9

triadic

#2333A9 #A92333 #33A923

tetradic

#2333A9 #A92376 #A99923 #23A956

square

#2333A9 #A92376 #A99923 #23A956

split-complementary

#2333A9 #A95623 #76A923

monochromatic

#0E1444 #192476 #2333A9 #3447D5 #6775DF

Accessibility & contrast

On white

9.92

#2333A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#2333A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2333A9

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2333A9	#FFFFFF	#000000	##FFFFFF
##2333A9	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AD

Deuteranopia (green-blind)

#003CA7

Tritanopia (blue-blind)

#00546A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2333a9;
/* rgb */ color: rgb(35, 51, 169);
/* oklch */ color: oklch(39.7% 0.187 269.2);

Tailwind

colors: {
  custom: {
    50: '#766bc4',
    500: '#2333a9',
    950: '#000000',
  },
}

SCSS

$custom: #2333a9;
$custom-light: #766bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#2333a9",
  "rgb": {
    "r": 35,
    "g": 51,
    "b": 169
  },
  "hsl": {
    "h": 232.836,
    "s": 65.686,
    "l": 40
  },
  "oklch": {
    "l": 0.39735,
    "c": 0.18684,
    "h": 269.2
  },
  "luminance": 0.0559
}

Semantic roles & 50–950 ramp

primary

#2333A9

secondary

#C5B963

accent

#D43FE9

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2333A9

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

Preview Lab → · Contrast checker → · Palette generator →