#233DBC#233DBC

#233DBC is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.3% C 0.200 H 267.4°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#233DBC
RGB	rgb(35, 61, 188)
HSL	hsl(230, 69%, 44%)
HSV	hsv(230, 81%, 74%)
CMYK	cmyk(81.4%, 67.6%, 0%, 26.3%)
CIE-LAB	lab(32.53, 37.64, -68.93)
CIE-LCH	lch(32.53, 78.54, 298.64°)
OKLab	oklab(43.33% -0.0089 -0.1997)
OKLCH	oklch(43.33% 0.2 267.4)
XYZ	xyz(11.4358, 7.3243, 48.3782)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.84

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233DBC #BCA223

analogous

#2389BC #233DBC #5523BC

triadic

#233DBC #BC233D #3DBC23

tetradic

#233DBC #BC2389 #BCA223 #23BC55

square

#233DBC #BC2389 #BCA223 #23BC55

split-complementary

#233DBC #BC5523 #89BC23

monochromatic

#101C55 #192C88 #233DBC #415BDC #7487E5

Accessibility & contrast

On white

8.52

#233DBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#233DBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233DBC

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233DBC	#FFFFFF	#000000	##FFFFFF
##233DBC	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C0

Deuteranopia (green-blind)

#0045BA

Tritanopia (blue-blind)

#006077

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #233dbc;
/* rgb */ color: rgb(35, 61, 188);
/* oklch */ color: oklch(43.3% 0.200 267.4);

Tailwind

colors: {
  custom: {
    50: '#7a72d1',
    500: '#233dbc',
    950: '#000000',
  },
}

SCSS

$custom: #233dbc;
$custom-light: #7a72d1;
$custom-dark: #000000;

JSON

{
  "hex": "#233dbc",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 188
  },
  "hsl": {
    "h": 229.804,
    "s": 68.61,
    "l": 43.725
  },
  "oklch": {
    "l": 0.43334,
    "c": 0.1999,
    "h": 267.4
  },
  "luminance": 0.07326
}

Semantic roles & 50–950 ramp

primary

#233DBC

secondary

#CCBC6F

accent

#CE3CEB

background

#F8F6FD

surface

#EFECFA

border

#CAC7D3

text

#0B0814

muted

#7C7B83

Preview Lab

Preview with #233DBC

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

Preview Lab → · Contrast checker → · Palette generator →