#233AA1#233AA1

#233AA1 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.168 H 267.9°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#233AA1
RGB	rgb(35, 58, 161)
HSL	hsl(229, 64%, 38%)
HSV	hsv(229, 78%, 63%)
CMYK	cmyk(78.3%, 64%, 0%, 36.9%)
CIE-LAB	lab(29.30, 29.53, -58.12)
CIE-LCH	lch(29.30, 65.19, 296.93°)
OKLab	oklab(40.2% -0.0061 -0.1681)
OKLCH	oklch(40.2% 0.168 267.9)
XYZ	xyz(8.6370, 5.9557, 34.4057)
Luminance	0.0596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233AA1 #A18A23

analogous

#2379A1 #233AA1 #4B23A1

triadic

#233AA1 #A1233A #3AA123

tetradic

#233AA1 #A12379 #A18A23 #23A14B

square

#233AA1 #A12379 #A18A23 #23A14B

split-complementary

#233AA1 #A14B23 #79A123

monochromatic

#0D163C #18286F #233AA1 #2F4DD2 #6278DD

Accessibility & contrast

On white

9.58

#233AA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#233AA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233AA1

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233AA1	#FFFFFF	#000000	##FFFFFF
##233AA1	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA4

Deuteranopia (green-blind)

#003F9F

Tritanopia (blue-blind)

#005568

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #233aa1;
/* rgb */ color: rgb(35, 58, 161);
/* oklch */ color: oklch(40.2% 0.168 267.9);

Tailwind

colors: {
  custom: {
    50: '#7370be',
    500: '#233aa1',
    950: '#000000',
  },
}

SCSS

$custom: #233aa1;
$custom-light: #7370be;
$custom-dark: #000000;

JSON

{
  "hex": "#233aa1",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 161
  },
  "hsl": {
    "h": 229.048,
    "s": 64.286,
    "l": 38.431
  },
  "oklch": {
    "l": 0.402,
    "c": 0.16822,
    "h": 267.9
  },
  "luminance": 0.05957
}

Semantic roles & 50–950 ramp

primary

#233AA1

secondary

#C2B05E

accent

#C941E7

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #233AA1

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

Preview Lab → · Contrast checker → · Palette generator →