#233AA6#233AA6

#233AA6 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.7% C 0.175 H 268.0°. Best body text is #FFFFFF at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#233AA6
RGB	rgb(35, 58, 166)
HSL	hsl(229, 65%, 39%)
HSV	hsv(229, 79%, 65%)
CMYK	cmyk(78.9%, 65.1%, 0%, 34.9%)
CIE-LAB	lab(29.75, 31.42, -60.40)
CIE-LCH	lch(29.75, 68.08, 297.48°)
OKLab	oklab(40.67% -0.0062 -0.1748)
OKLCH	oklch(40.67% 0.175 268)
XYZ	xyz(9.0867, 6.1356, 36.7744)
Luminance	0.0614 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233AA6 #A68F23

analogous

#237BA6 #233AA6 #4E23A6

triadic

#233AA6 #A6233A #3AA623

tetradic

#233AA6 #A6237B #A68F23 #23A64E

square

#233AA6 #A6237B #A68F23 #23A64E

split-complementary

#233AA6 #A64E23 #7BA623

monochromatic

#0E1741 #182873 #233AA6 #324FD4 #657ADF

Accessibility & contrast

On white

9.43

#233AA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#233AA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233AA6

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233AA6	#FFFFFF	#000000	##FFFFFF
##233AA6	1.00	9.43	2.23	9.43
#FFFFFF	9.43	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA9

Deuteranopia (green-blind)

#0040A4

Tritanopia (blue-blind)

#00576A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #233aa6;
/* rgb */ color: rgb(35, 58, 166);
/* oklch */ color: oklch(40.7% 0.175 268.0);

Tailwind

colors: {
  custom: {
    50: '#7470c1',
    500: '#233aa6',
    950: '#000000',
  },
}

SCSS

$custom: #233aa6;
$custom-light: #7470c1;
$custom-dark: #000000;

JSON

{
  "hex": "#233aa6",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 166
  },
  "hsl": {
    "h": 229.466,
    "s": 65.174,
    "l": 39.412
  },
  "oklch": {
    "l": 0.40672,
    "c": 0.17489,
    "h": 268
  },
  "luminance": 0.06137
}

Semantic roles & 50–950 ramp

primary

#233AA6

secondary

#C4B361

accent

#CB40E8

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #233AA6

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

Preview Lab → · Contrast checker → · Palette generator →