#233AA5#233AA5

#233AA5 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.6% C 0.174 H 267.9°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#233AA5
RGB	rgb(35, 58, 165)
HSL	hsl(229, 65%, 39%)
HSV	hsv(229, 79%, 65%)
CMYK	cmyk(78.8%, 64.8%, 0%, 35.3%)
CIE-LAB	lab(29.66, 31.04, -59.95)
CIE-LCH	lch(29.66, 67.51, 297.38°)
OKLab	oklab(40.58% -0.0062 -0.1734)
OKLCH	oklch(40.58% 0.174 267.9)
XYZ	xyz(8.9954, 6.0990, 36.2932)
Luminance	0.0610 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233AA5 #A58E23

analogous

#237BA5 #233AA5 #4D23A5

triadic

#233AA5 #A5233A #3AA523

tetradic

#233AA5 #A5237B #A58E23 #23A54D

square

#233AA5 #A5237B #A58E23 #23A54D

split-complementary

#233AA5 #A54D23 #7BA523

monochromatic

#0E1740 #182873 #233AA5 #324ED3 #647ADE

Accessibility & contrast

On white

9.46

#233AA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#233AA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233AA5

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233AA5	#FFFFFF	#000000	##FFFFFF
##233AA5	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA8

Deuteranopia (green-blind)

#0040A3

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #233aa5;
/* rgb */ color: rgb(35, 58, 165);
/* oklch */ color: oklch(40.6% 0.174 267.9);

Tailwind

colors: {
  custom: {
    50: '#7470c1',
    500: '#233aa5',
    950: '#000000',
  },
}

SCSS

$custom: #233aa5;
$custom-light: #7470c1;
$custom-dark: #000000;

JSON

{
  "hex": "#233aa5",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 165
  },
  "hsl": {
    "h": 229.385,
    "s": 65,
    "l": 39.216
  },
  "oklch": {
    "l": 0.40577,
    "c": 0.17356,
    "h": 267.9
  },
  "luminance": 0.061
}

Semantic roles & 50–950 ramp

primary

#233AA5

secondary

#C4B260

accent

#CA40E8

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #233AA5

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

Preview Lab → · Contrast checker → · Palette generator →