#263A8E#263A8E

#263A8E is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.6% C 0.141 H 268.7°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#263A8E
RGB	rgb(38, 58, 142)
HSL	hsl(228, 58%, 35%)
HSV	hsv(228, 73%, 56%)
CMYK	cmyk(73.2%, 59.2%, 0%, 44.3%)
CIE-LAB	lab(27.82, 22.62, -48.92)
CIE-LCH	lch(27.82, 53.90, 294.81°)
OKLab	oklab(38.64% -0.0032 -0.1411)
OKLCH	oklch(38.64% 0.141 268.7)
XYZ	xyz(7.1932, 5.3904, 26.2473)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263A8E #8E7A26

analogous

#266E8E #263A8E #46268E

triadic

#263A8E #8E263A #3A8E26

tetradic

#263A8E #8E266E #8E7A26 #268E46

square

#263A8E #8E266E #8E7A26 #268E46

split-complementary

#263A8E #8E4626 #6E8E26

monochromatic

#0C132D #19265E #263A8E #334EBE #5B72D3

Accessibility & contrast

On white

10.10

#263A8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#263A8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263A8E

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263A8E	#FFFFFF	#000000	##FFFFFF
##263A8E	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004791

Deuteranopia (green-blind)

#003D8C

Tritanopia (blue-blind)

#004F5E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #263a8e;
/* rgb */ color: rgb(38, 58, 142);
/* oklch */ color: oklch(38.6% 0.141 268.7);

Tailwind

colors: {
  custom: {
    50: '#6f6fb0',
    500: '#263a8e',
    950: '#000000',
  },
}

SCSS

$custom: #263a8e;
$custom-light: #6f6fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#263a8e",
  "rgb": {
    "r": 38,
    "g": 58,
    "b": 142
  },
  "hsl": {
    "h": 228.462,
    "s": 57.778,
    "l": 35.294
  },
  "oklch": {
    "l": 0.38635,
    "c": 0.1411,
    "h": 268.7
  },
  "luminance": 0.05391
}

Semantic roles & 50–950 ramp

primary

#263A8E

secondary

#B8A658

accent

#C347E1

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #263A8E

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

Preview Lab → · Contrast checker → · Palette generator →