#233A9E#233A9E

#233A9E is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.164 H 267.9°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#233A9E
RGB	rgb(35, 58, 158)
HSL	hsl(229, 64%, 38%)
HSV	hsv(229, 78%, 62%)
CMYK	cmyk(77.8%, 63.3%, 0%, 38%)
CIE-LAB	lab(29.03, 28.39, -56.74)
CIE-LCH	lch(29.03, 63.44, 296.58°)
OKLab	oklab(39.92% -0.006 -0.1641)
OKLCH	oklch(39.92% 0.164 267.9)
XYZ	xyz(8.3756, 5.8511, 33.0291)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A9E #9E8723

analogous

#23789E #233A9E #49239E

triadic

#233A9E #9E233A #3A9E23

tetradic

#233A9E #9E2378 #9E8723 #239E49

square

#233A9E #9E2378 #9E8723 #239E49

split-complementary

#233A9E #9E4923 #789E23

monochromatic

#0D153A #18286C #233A9E #2E4CD0 #6077DC

Accessibility & contrast

On white

9.68

#233A9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#233A9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A9E

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A9E	#FFFFFF	#000000	##FFFFFF
##233A9E	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA1

Deuteranopia (green-blind)

#003F9C

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #233a9e;
/* rgb */ color: rgb(35, 58, 158);
/* oklch */ color: oklch(39.9% 0.164 267.9);

Tailwind

colors: {
  custom: {
    50: '#7270bc',
    500: '#233a9e',
    950: '#000000',
  },
}

SCSS

$custom: #233a9e;
$custom-light: #7270bc;
$custom-dark: #000000;

JSON

{
  "hex": "#233a9e",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 158
  },
  "hsl": {
    "h": 228.78,
    "s": 63.731,
    "l": 37.843
  },
  "oklch": {
    "l": 0.39921,
    "c": 0.16417,
    "h": 267.9
  },
  "luminance": 0.05852
}

Semantic roles & 50–950 ramp

primary

#233A9E

secondary

#C1AE5C

accent

#C841E7

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #233A9E

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

Preview Lab → · Contrast checker → · Palette generator →