#233E8F#233E8F

#233E8F is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.4% C 0.138 H 266.2°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#233E8F
RGB	rgb(35, 62, 143)
HSL	hsl(225, 61%, 35%)
HSV	hsv(225, 76%, 56%)
CMYK	cmyk(75.5%, 56.6%, 0%, 43.9%)
CIE-LAB	lab(28.86, 19.86, -47.85)
CIE-LCH	lch(28.86, 51.80, 292.54°)
OKLab	oklab(39.4% -0.0092 -0.1379)
OKLCH	oklch(39.4% 0.138 266.2)
XYZ	xyz(7.3719, 5.7849, 26.7094)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233E8F #8F7423

analogous

#23748F #233E8F #3E238F

triadic

#233E8F #8F233E #3E8F23

tetradic

#233E8F #8F2374 #8F7423 #238F3E

square

#233E8F #8F2374 #8F7423 #238F3E

split-complementary

#233E8F #8F3E23 #748F23

monochromatic

#0B132D #17295E #233E8F #2F53C0 #5776D6

Accessibility & contrast

On white

9.73

#233E8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#233E8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233E8F

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233E8F	#FFFFFF	#000000	##FFFFFF
##233E8F	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004992

Deuteranopia (green-blind)

#003F8D

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #233e8f;
/* rgb */ color: rgb(35, 62, 143);
/* oklch */ color: oklch(39.4% 0.138 266.2);

Tailwind

colors: {
  custom: {
    50: '#6e72b0',
    500: '#233e8f',
    950: '#000000',
  },
}

SCSS

$custom: #233e8f;
$custom-light: #6e72b0;
$custom-dark: #000000;

JSON

{
  "hex": "#233e8f",
  "rgb": {
    "r": 35,
    "g": 62,
    "b": 143
  },
  "hsl": {
    "h": 225,
    "s": 60.674,
    "l": 34.902
  },
  "oklch": {
    "l": 0.39404,
    "c": 0.13821,
    "h": 266.2
  },
  "luminance": 0.05786
}

Semantic roles & 50–950 ramp

primary

#233E8F

secondary

#BAA054

accent

#BC44E4

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080811

muted

#7B7B80

Preview Lab

Preview with #233E8F

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

Preview Lab → · Contrast checker → · Palette generator →