#233999#233999

#233999 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.3% C 0.159 H 268.1°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#233999
RGB	rgb(35, 57, 153)
HSL	hsl(229, 63%, 37%)
HSV	hsv(229, 77%, 60%)
CMYK	cmyk(77.1%, 62.7%, 0%, 40%)
CIE-LAB	lab(28.33, 27.15, -54.84)
CIE-LCH	lch(28.33, 61.19, 296.34°)
OKLab	oklab(39.27% -0.0053 -0.1585)
OKLCH	oklch(39.27% 0.159 268.1)
XYZ	xyz(7.9040, 5.5826, 30.7918)
Luminance	0.0558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233999 #998323

analogous

#237499 #233999 #482399

triadic

#233999 #992339 #399923

tetradic

#233999 #992374 #998323 #239948

square

#233999 #992374 #998323 #239948

split-complementary

#233999 #994823 #749923

monochromatic

#0C1435 #182667 #233999 #2E4CCB #5D74DA

Accessibility & contrast

On white

9.92

#233999 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#233999 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233999

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233999	#FFFFFF	#000000	##FFFFFF
##233999	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489C

Deuteranopia (green-blind)

#003D97

Tritanopia (blue-blind)

#005263

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #233999;
/* rgb */ color: rgb(35, 57, 153);
/* oklch */ color: oklch(39.3% 0.159 268.1);

Tailwind

colors: {
  custom: {
    50: '#716fb8',
    500: '#233999',
    950: '#000000',
  },
}

SCSS

$custom: #233999;
$custom-light: #716fb8;
$custom-dark: #000000;

JSON

{
  "hex": "#233999",
  "rgb": {
    "r": 35,
    "g": 57,
    "b": 153
  },
  "hsl": {
    "h": 228.814,
    "s": 62.766,
    "l": 36.863
  },
  "oklch": {
    "l": 0.39267,
    "c": 0.15859,
    "h": 268.1
  },
  "luminance": 0.05583
}

Semantic roles & 50–950 ramp

primary

#233999

secondary

#BEAC59

accent

#C742E6

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #233999

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

Preview Lab → · Contrast checker → · Palette generator →