#233BA9#233BA9

#233BA9 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.1% C 0.178 H 267.8°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#233BA9
RGB	rgb(35, 59, 169)
HSL	hsl(229, 66%, 40%)
HSV	hsv(229, 79%, 66%)
CMYK	cmyk(79.3%, 65.1%, 0%, 33.7%)
CIE-LAB	lab(30.28, 31.89, -61.34)
CIE-LCH	lch(30.28, 69.14, 297.47°)
OKLab	oklab(41.14% -0.0069 -0.1775)
OKLCH	oklch(41.14% 0.178 267.8)
XYZ	xyz(9.4160, 6.3487, 38.2576)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233BA9 #A99123

analogous

#237EA9 #233BA9 #4E23A9

triadic

#233BA9 #A9233B #3BA923

tetradic

#233BA9 #A9237E #A99123 #23A94E

square

#233BA9 #A9237E #A99123 #23A94E

split-complementary

#233BA9 #A94E23 #7EA923

monochromatic

#0E1844 #192976 #233BA9 #3451D5 #677CDF

Accessibility & contrast

On white

9.25

#233BA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#233BA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233BA9

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233BA9	#FFFFFF	#000000	##FFFFFF
##233BA9	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAD

Deuteranopia (green-blind)

#0041A7

Tritanopia (blue-blind)

#00586C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #233ba9;
/* rgb */ color: rgb(35, 59, 169);
/* oklch */ color: oklch(41.1% 0.178 267.8);

Tailwind

colors: {
  custom: {
    50: '#7570c4',
    500: '#233ba9',
    950: '#000000',
  },
}

SCSS

$custom: #233ba9;
$custom-light: #7570c4;
$custom-dark: #000000;

JSON

{
  "hex": "#233ba9",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 169
  },
  "hsl": {
    "h": 229.254,
    "s": 65.686,
    "l": 40
  },
  "oklch": {
    "l": 0.41141,
    "c": 0.17767,
    "h": 267.8
  },
  "luminance": 0.0635
}

Semantic roles & 50–950 ramp

primary

#233BA9

secondary

#C5B463

accent

#CA3FE9

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #233BA9

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

Preview Lab → · Contrast checker → · Palette generator →