#23388B#23388B

#23388B is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.8% C 0.140 H 268.1°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#23388B
RGB	rgb(35, 56, 139)
HSL	hsl(228, 60%, 34%)
HSV	hsv(228, 75%, 55%)
CMYK	cmyk(74.8%, 59.7%, 0%, 45.5%)
CIE-LAB	lab(26.87, 22.42, -48.61)
CIE-LCH	lch(26.87, 53.53, 294.76°)
OKLab	oklab(37.81% -0.0046 -0.1402)
OKLCH	oklch(37.81% 0.14 268.1)
XYZ	xyz(6.7659, 5.0490, 25.0391)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23388B #8B7623

analogous

#236C8B #23388B #42238B

triadic

#23388B #8B2338 #388B23

tetradic

#23388B #8B236C #8B7623 #238B42

square

#23388B #8B236C #8B7623 #238B42

split-complementary

#23388B #8B4223 #6C8B23

monochromatic

#0A1129 #17245A #23388B #2F4CBC #546ED4

Accessibility & contrast

On white

10.45

#23388B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#23388B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23388B

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23388B	#FFFFFF	#000000	##FFFFFF
##23388B	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448E

Deuteranopia (green-blind)

#003B89

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #23388b;
/* rgb */ color: rgb(35, 56, 139);
/* oklch */ color: oklch(37.8% 0.140 268.1);

Tailwind

colors: {
  custom: {
    50: '#6e6eae',
    500: '#23388b',
    950: '#000000',
  },
}

SCSS

$custom: #23388b;
$custom-light: #6e6eae;
$custom-dark: #000000;

JSON

{
  "hex": "#23388b",
  "rgb": {
    "r": 35,
    "g": 56,
    "b": 139
  },
  "hsl": {
    "h": 227.885,
    "s": 59.77,
    "l": 34.118
  },
  "oklch": {
    "l": 0.37811,
    "c": 0.14032,
    "h": 268.1
  },
  "luminance": 0.0505
}

Semantic roles & 50–950 ramp

primary

#23388B

secondary

#B8A352

accent

#C345E3

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #23388B

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

Preview Lab → · Contrast checker → · Palette generator →