#233DB0#233DB0

#233DB0 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.2% C 0.184 H 267.4°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#233DB0
RGB	rgb(35, 61, 176)
HSL	hsl(229, 67%, 41%)
HSV	hsv(229, 80%, 69%)
CMYK	cmyk(80.1%, 65.3%, 0%, 31%)
CIE-LAB	lab(31.41, 33.21, -63.66)
CIE-LCH	lch(31.41, 71.80, 297.55°)
OKLab	oklab(42.17% -0.0083 -0.1843)
OKLCH	oklch(42.17% 0.185 267.4)
XYZ	xyz(10.1956, 6.8282, 41.8465)
Luminance	0.0683 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233DB0 #B09623

analogous

#2384B0 #233DB0 #5023B0

triadic

#233DB0 #B0233D #3DB023

tetradic

#233DB0 #B02384 #B09623 #23B050

square

#233DB0 #B02384 #B09623 #23B050

split-complementary

#233DB0 #B05023 #84B023

monochromatic

#0F1A4A #192B7D #233DB0 #3956D8 #6C81E2

Accessibility & contrast

On white

8.88

#233DB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#233DB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233DB0

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233DB0	#FFFFFF	#000000	##FFFFFF
##233DB0	1.00	8.88	2.37	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B4

Deuteranopia (green-blind)

#0043AE

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #233db0;
/* rgb */ color: rgb(35, 61, 176);
/* oklch */ color: oklch(42.2% 0.184 267.4);

Tailwind

colors: {
  custom: {
    50: '#7772c9',
    500: '#233db0',
    950: '#000000',
  },
}

SCSS

$custom: #233db0;
$custom-light: #7772c9;
$custom-dark: #000000;

JSON

{
  "hex": "#233db0",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 176
  },
  "hsl": {
    "h": 228.936,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.42172,
    "c": 0.1845,
    "h": 267.4
  },
  "luminance": 0.06829
}

Semantic roles & 50–950 ramp

primary

#233DB0

secondary

#C8B667

accent

#CA3EEA

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #233DB0

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

Preview Lab → · Contrast checker → · Palette generator →