#263F8F#263F8F

#263F8F is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.8% C 0.136 H 266.9°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#263F8F
RGB	rgb(38, 63, 143)
HSL	hsl(226, 58%, 35%)
HSV	hsv(226, 73%, 56%)
CMYK	cmyk(73.4%, 55.9%, 0%, 43.9%)
CIE-LAB	lab(29.28, 19.58, -47.16)
CIE-LCH	lch(29.28, 51.06, 292.55°)
OKLab	oklab(39.76% -0.0073 -0.1358)
OKLCH	oklch(39.76% 0.136 266.9)
XYZ	xyz(7.5330, 5.9495, 26.7326)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263F8F #8F7626

analogous

#26738F #263F8F #41268F

triadic

#263F8F #8F263F #3F8F26

tetradic

#263F8F #8F2673 #8F7626 #268F41

square

#263F8F #8F2673 #8F7626 #268F41

split-complementary

#263F8F #8F4126 #738F26

monochromatic

#0C142E #192A5F #263F8F #3354BF #5C78D4

Accessibility & contrast

On white

9.59

#263F8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#263F8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263F8F

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263F8F	#FFFFFF	#000000	##FFFFFF
##263F8F	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A92

Deuteranopia (green-blind)

#00408D

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #263f8f;
/* rgb */ color: rgb(38, 63, 143);
/* oklch */ color: oklch(39.8% 0.136 266.9);

Tailwind

colors: {
  custom: {
    50: '#6f73b0',
    500: '#263f8f',
    950: '#000000',
  },
}

SCSS

$custom: #263f8f;
$custom-light: #6f73b0;
$custom-dark: #000000;

JSON

{
  "hex": "#263f8f",
  "rgb": {
    "r": 38,
    "g": 63,
    "b": 143
  },
  "hsl": {
    "h": 225.714,
    "s": 58.011,
    "l": 35.49
  },
  "oklch": {
    "l": 0.3976,
    "c": 0.13599,
    "h": 266.9
  },
  "luminance": 0.0595
}

Semantic roles & 50–950 ramp

primary

#263F8F

secondary

#B9A258

accent

#BC47E1

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080811

muted

#7B7B80

Preview Lab

Preview with #263F8F

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

Preview Lab → · Contrast checker → · Palette generator →