#233EA6#233EA6

#233EA6 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.4% C 0.170 H 267.1°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#233EA6
RGB	rgb(35, 62, 166)
HSL	hsl(228, 65%, 39%)
HSV	hsv(228, 79%, 65%)
CMYK	cmyk(78.9%, 62.7%, 0%, 34.9%)
CIE-LAB	lab(30.77, 28.77, -58.73)
CIE-LCH	lch(30.77, 65.40, 296.10°)
OKLab	oklab(41.42% -0.0086 -0.1698)
OKLCH	oklch(41.42% 0.17 267.1)
XYZ	xyz(9.2963, 6.5547, 36.8442)
Luminance	0.0656 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233EA6 #A68B23

analogous

#237FA6 #233EA6 #4A23A6

triadic

#233EA6 #A6233E #3EA623

tetradic

#233EA6 #A6237F #A68B23 #23A64A

square

#233EA6 #A6237F #A68B23 #23A64A

split-complementary

#233EA6 #A64A23 #7FA623

monochromatic

#0E1841 #182B73 #233EA6 #3254D4 #657EDF

Accessibility & contrast

On white

9.09

#233EA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#233EA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233EA6

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233EA6	#FFFFFF	#000000	##FFFFFF
##233EA6	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA9

Deuteranopia (green-blind)

#0042A4

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #233ea6;
/* rgb */ color: rgb(35, 62, 166);
/* oklch */ color: oklch(41.4% 0.170 267.1);

Tailwind

colors: {
  custom: {
    50: '#7473c1',
    500: '#233ea6',
    950: '#000000',
  },
}

SCSS

$custom: #233ea6;
$custom-light: #7473c1;
$custom-dark: #000000;

JSON

{
  "hex": "#233ea6",
  "rgb": {
    "r": 35,
    "g": 62,
    "b": 166
  },
  "hsl": {
    "h": 227.634,
    "s": 65.174,
    "l": 39.412
  },
  "oklch": {
    "l": 0.41424,
    "c": 0.17007,
    "h": 267.1
  },
  "luminance": 0.06556
}

Semantic roles & 50–950 ramp

primary

#233EA6

secondary

#C4B061

accent

#C540E8

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #233EA6

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

Preview Lab → · Contrast checker → · Palette generator →