#23378D#23378D

#23378D is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.8% C 0.144 H 268.5°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#23378D
RGB	rgb(35, 55, 141)
HSL	hsl(229, 60%, 35%)
HSV	hsv(229, 75%, 55%)
CMYK	cmyk(75.2%, 61%, 0%, 44.7%)
CIE-LAB	lab(26.77, 23.88, -50.02)
CIE-LCH	lch(26.77, 55.43, 295.52°)
OKLab	oklab(37.79% -0.0038 -0.1444)
OKLCH	oklch(37.79% 0.144 268.5)
XYZ	xyz(6.8654, 5.0121, 25.7997)
Luminance	0.0501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23378D #8D7923

analogous

#236C8D #23378D #44238D

triadic

#23378D #8D2337 #378D23

tetradic

#23378D #8D236C #8D7923 #238D44

square

#23378D #8D236C #8D7923 #238D44

split-complementary

#23378D #8D4423 #6C8D23

monochromatic

#0B112B #17245C #23378D #2F4ABE #556ED5

Accessibility & contrast

On white

10.49

#23378D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#23378D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23378D

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23378D	#FFFFFF	#000000	##FFFFFF
##23378D	1.00	10.49	2.00	10.49
#FFFFFF	10.49	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004490

Deuteranopia (green-blind)

#003B8B

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #23378d;
/* rgb */ color: rgb(35, 55, 141);
/* oklch */ color: oklch(37.8% 0.144 268.5);

Tailwind

colors: {
  custom: {
    50: '#6e6daf',
    500: '#23378d',
    950: '#000000',
  },
}

SCSS

$custom: #23378d;
$custom-light: #6e6daf;
$custom-dark: #000000;

JSON

{
  "hex": "#23378d",
  "rgb": {
    "r": 35,
    "g": 55,
    "b": 141
  },
  "hsl": {
    "h": 228.679,
    "s": 60.227,
    "l": 34.51
  },
  "oklch": {
    "l": 0.37785,
    "c": 0.14444,
    "h": 268.5
  },
  "luminance": 0.05013
}

Semantic roles & 50–950 ramp

primary

#23378D

secondary

#B9A653

accent

#C544E3

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #23378D

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

Preview Lab → · Contrast checker → · Palette generator →