#23378A#23378A

#23378A is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.5% C 0.140 H 268.4°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#23378A
RGB	rgb(35, 55, 138)
HSL	hsl(228, 60%, 34%)
HSV	hsv(228, 75%, 54%)
CMYK	cmyk(74.6%, 60.1%, 0%, 45.9%)
CIE-LAB	lab(26.52, 22.72, -48.57)
CIE-LCH	lch(26.52, 53.62, 295.07°)
OKLab	oklab(37.52% -0.0039 -0.1401)
OKLCH	oklch(37.52% 0.14 268.4)
XYZ	xyz(6.6452, 4.9240, 24.6400)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23378A #8A7623

analogous

#236B8A #23378A #43238A

triadic

#23378A #8A2337 #378A23

tetradic

#23378A #8A236B #8A7623 #238A43

square

#23378A #8A236B #8A7623 #238A43

split-complementary

#23378A #8A4323 #6B8A23

monochromatic

#0A1028 #172459 #23378A #2F4ABB #546DD4

Accessibility & contrast

On white

10.58

#23378A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#23378A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23378A

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23378A	#FFFFFF	#000000	##FFFFFF
##23378A	1.00	10.58	1.99	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448D

Deuteranopia (green-blind)

#003A88

Tritanopia (blue-blind)

#004C5B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #23378a;
/* rgb */ color: rgb(35, 55, 138);
/* oklch */ color: oklch(37.5% 0.140 268.4);

Tailwind

colors: {
  custom: {
    50: '#6d6dad',
    500: '#23378a',
    950: '#000000',
  },
}

SCSS

$custom: #23378a;
$custom-light: #6d6dad;
$custom-dark: #000000;

JSON

{
  "hex": "#23378a",
  "rgb": {
    "r": 35,
    "g": 55,
    "b": 138
  },
  "hsl": {
    "h": 228.35,
    "s": 59.538,
    "l": 33.922
  },
  "oklch": {
    "l": 0.37518,
    "c": 0.14019,
    "h": 268.4
  },
  "luminance": 0.04925
}

Semantic roles & 50–950 ramp

primary

#23378A

secondary

#B7A451

accent

#C445E3

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #23378A

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

Preview Lab → · Contrast checker → · Palette generator →