#23378C#23378C

#23378C is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.7% C 0.143 H 268.5°. Best body text is #FFFFFF at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#23378C
RGB	rgb(35, 55, 140)
HSL	hsl(229, 60%, 34%)
HSV	hsv(229, 75%, 55%)
CMYK	cmyk(75%, 60.7%, 0%, 45.1%)
CIE-LAB	lab(26.68, 23.49, -49.54)
CIE-LCH	lch(26.68, 54.83, 295.37°)
OKLab	oklab(37.7% -0.0039 -0.143)
OKLCH	oklch(37.7% 0.143 268.5)
XYZ	xyz(6.7913, 4.9824, 25.4096)
Luminance	0.0498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23378C #8C7823

analogous

#236C8C #23378C #43238C

triadic

#23378C #8C2337 #378C23

tetradic

#23378C #8C236C #8C7823 #238C43

square

#23378C #8C236C #8C7823 #238C43

split-complementary

#23378C #8C4323 #6C8C23

monochromatic

#0B112A #17245B #23378C #2F4ABD #556DD4

Accessibility & contrast

On white

10.52

#23378C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#23378C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23378C

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23378C	#FFFFFF	#000000	##FFFFFF
##23378C	1.00	10.52	2.00	10.52
#FFFFFF	10.52	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448F

Deuteranopia (green-blind)

#003A8A

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #23378c;
/* rgb */ color: rgb(35, 55, 140);
/* oklch */ color: oklch(37.7% 0.143 268.5);

Tailwind

colors: {
  custom: {
    50: '#6e6dae',
    500: '#23378c',
    950: '#000000',
  },
}

SCSS

$custom: #23378c;
$custom-light: #6e6dae;
$custom-dark: #000000;

JSON

{
  "hex": "#23378c",
  "rgb": {
    "r": 35,
    "g": 55,
    "b": 140
  },
  "hsl": {
    "h": 228.571,
    "s": 60,
    "l": 34.314
  },
  "oklch": {
    "l": 0.37695,
    "c": 0.14303,
    "h": 268.5
  },
  "luminance": 0.04983
}

Semantic roles & 50–950 ramp

primary

#23378C

secondary

#B8A552

accent

#C545E3

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #23378C

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

Preview Lab → · Contrast checker → · Palette generator →