#233DB2#233DB2

#233DB2 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.4% C 0.187 H 267.4°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#233DB2
RGB	rgb(35, 61, 178)
HSL	hsl(229, 67%, 42%)
HSV	hsv(229, 80%, 70%)
CMYK	cmyk(80.3%, 65.7%, 0%, 30.2%)
CIE-LAB	lab(31.60, 33.95, -64.55)
CIE-LCH	lch(31.60, 72.94, 297.74°)
OKLab	oklab(42.36% -0.0084 -0.1869)
OKLCH	oklch(42.36% 0.187 267.4)
XYZ	xyz(10.3950, 6.9080, 42.8964)
Luminance	0.0691 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233DB2 #B29823

analogous

#2385B2 #233DB2 #5123B2

triadic

#233DB2 #B2233D #3DB223

tetradic

#233DB2 #B22385 #B29823 #23B251

square

#233DB2 #B22385 #B29823 #23B251

split-complementary

#233DB2 #B25123 #85B223

monochromatic

#0F1A4C #192B7F #233DB2 #3A57D8 #6D82E2

Accessibility & contrast

On white

8.82

#233DB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#233DB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233DB2

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233DB2	#FFFFFF	#000000	##FFFFFF
##233DB2	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B6

Deuteranopia (green-blind)

#0044B0

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #233db2;
/* rgb */ color: rgb(35, 61, 178);
/* oklch */ color: oklch(42.4% 0.187 267.4);

Tailwind

colors: {
  custom: {
    50: '#7772ca',
    500: '#233db2',
    950: '#000000',
  },
}

SCSS

$custom: #233db2;
$custom-light: #7772ca;
$custom-dark: #000000;

JSON

{
  "hex": "#233db2",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 178
  },
  "hsl": {
    "h": 229.091,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42363,
    "c": 0.18709,
    "h": 267.4
  },
  "luminance": 0.06909
}

Semantic roles & 50–950 ramp

primary

#233DB2

secondary

#C9B768

accent

#CB3EEA

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #233DB2

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

Preview Lab → · Contrast checker → · Palette generator →