#263F8C#263F8C

#263F8C is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.5% C 0.132 H 266.7°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#263F8C
RGB	rgb(38, 63, 140)
HSL	hsl(225, 57%, 35%)
HSV	hsv(225, 73%, 55%)
CMYK	cmyk(72.9%, 55%, 0%, 45.1%)
CIE-LAB	lab(29.06, 18.41, -45.68)
CIE-LCH	lch(29.06, 49.25, 291.95°)
OKLab	oklab(39.52% -0.0076 -0.1314)
OKLCH	oklch(39.52% 0.132 266.7)
XYZ	xyz(7.3088, 5.8598, 25.5517)
Luminance	0.0586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263F8C #8C7326

analogous

#26728C #263F8C #40268C

triadic

#263F8C #8C263F #3F8C26

tetradic

#263F8C #8C2672 #8C7326 #268C40

square

#263F8C #8C2672 #8C7326 #268C40

split-complementary

#263F8C #8C4026 #728C26

monochromatic

#0C142C #19295C #263F8C #3355BC #5A78D2

Accessibility & contrast

On white

9.67

#263F8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#263F8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263F8C

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263F8C	#FFFFFF	#000000	##FFFFFF
##263F8C	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05498F

Deuteranopia (green-blind)

#00408A

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #263f8c;
/* rgb */ color: rgb(38, 63, 140);
/* oklch */ color: oklch(39.5% 0.132 266.7);

Tailwind

colors: {
  custom: {
    50: '#6e73ae',
    500: '#263f8c',
    950: '#000000',
  },
}

SCSS

$custom: #263f8c;
$custom-light: #6e73ae;
$custom-dark: #000000;

JSON

{
  "hex": "#263f8c",
  "rgb": {
    "r": 38,
    "g": 63,
    "b": 140
  },
  "hsl": {
    "h": 225.294,
    "s": 57.303,
    "l": 34.902
  },
  "oklch": {
    "l": 0.39515,
    "c": 0.13167,
    "h": 266.7
  },
  "luminance": 0.05861
}

Semantic roles & 50–950 ramp

primary

#263F8C

secondary

#B79F57

accent

#BB47E1

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #263F8C

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

Preview Lab → · Contrast checker → · Palette generator →