#233A9D#233A9D

#233A9D is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.8% C 0.163 H 267.9°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#233A9D
RGB	rgb(35, 58, 157)
HSL	hsl(229, 64%, 38%)
HSV	hsv(229, 78%, 62%)
CMYK	cmyk(77.7%, 63.1%, 0%, 38.4%)
CIE-LAB	lab(28.95, 28.01, -56.27)
CIE-LCH	lch(28.95, 62.86, 296.46°)
OKLab	oklab(39.83% -0.006 -0.1627)
OKLCH	oklch(39.83% 0.163 267.9)
XYZ	xyz(8.2899, 5.8168, 32.5776)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A9D #9D8623

analogous

#23779D #233A9D #49239D

triadic

#233A9D #9D233A #3A9D23

tetradic

#233A9D #9D2377 #9D8623 #239D49

square

#233A9D #9D2377 #9D8623 #239D49

split-complementary

#233A9D #9D4923 #779D23

monochromatic

#0D1539 #18286B #233A9D #2E4CCF #5F76DB

Accessibility & contrast

On white

9.71

#233A9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#233A9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A9D

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A9D	#FFFFFF	#000000	##FFFFFF
##233A9D	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA0

Deuteranopia (green-blind)

#003F9B

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #233a9d;
/* rgb */ color: rgb(35, 58, 157);
/* oklch */ color: oklch(39.8% 0.163 267.9);

Tailwind

colors: {
  custom: {
    50: '#7270bb',
    500: '#233a9d',
    950: '#000000',
  },
}

SCSS

$custom: #233a9d;
$custom-light: #7270bb;
$custom-dark: #000000;

JSON

{
  "hex": "#233a9d",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 157
  },
  "hsl": {
    "h": 228.689,
    "s": 63.542,
    "l": 37.647
  },
  "oklch": {
    "l": 0.39829,
    "c": 0.16281,
    "h": 267.9
  },
  "luminance": 0.05818
}

Semantic roles & 50–950 ramp

primary

#233A9D

secondary

#C0AD5C

accent

#C741E7

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #233A9D

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

Preview Lab → · Contrast checker → · Palette generator →