#263A8C#263A8C

#263A8C is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.138 H 268.6°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#263A8C
RGB	rgb(38, 58, 140)
HSL	hsl(228, 57%, 35%)
HSV	hsv(228, 73%, 55%)
CMYK	cmyk(72.9%, 58.6%, 0%, 45.1%)
CIE-LAB	lab(27.66, 21.85, -47.95)
CIE-LCH	lch(27.66, 52.69, 294.50°)
OKLab	oklab(38.46% -0.0033 -0.1382)
OKLCH	oklch(38.46% 0.138 268.6)
XYZ	xyz(7.0444, 5.3309, 25.4636)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263A8C #8C7826

analogous

#266D8C #263A8C #45268C

triadic

#263A8C #8C263A #3A8C26

tetradic

#263A8C #8C266D #8C7826 #268C45

square

#263A8C #8C266D #8C7826 #268C45

split-complementary

#263A8C #8C4526 #6D8C26

monochromatic

#0C122C #19265C #263A8C #334EBC #5A72D2

Accessibility & contrast

On white

10.16

#263A8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#263A8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263A8C

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263A8C	#FFFFFF	#000000	##FFFFFF
##263A8C	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468F

Deuteranopia (green-blind)

#003D8A

Tritanopia (blue-blind)

#004E5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #263a8c;
/* rgb */ color: rgb(38, 58, 140);
/* oklch */ color: oklch(38.5% 0.138 268.6);

Tailwind

colors: {
  custom: {
    50: '#6f6fae',
    500: '#263a8c',
    950: '#000000',
  },
}

SCSS

$custom: #263a8c;
$custom-light: #6f6fae;
$custom-dark: #000000;

JSON

{
  "hex": "#263a8c",
  "rgb": {
    "r": 38,
    "g": 58,
    "b": 140
  },
  "hsl": {
    "h": 228.235,
    "s": 57.303,
    "l": 34.902
  },
  "oklch": {
    "l": 0.38463,
    "c": 0.13824,
    "h": 268.6
  },
  "luminance": 0.05332
}

Semantic roles & 50–950 ramp

primary

#263A8C

secondary

#B7A457

accent

#C247E1

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #263A8C

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

Preview Lab → · Contrast checker → · Palette generator →