#263C8F#263C8F

#263C8F is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.1% C 0.140 H 268.0°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#263C8F
RGB	rgb(38, 60, 143)
HSL	hsl(227, 58%, 35%)
HSV	hsv(227, 73%, 56%)
CMYK	cmyk(73.4%, 58%, 0%, 43.9%)
CIE-LAB	lab(28.45, 21.64, -48.51)
CIE-LCH	lch(28.45, 53.12, 294.03°)
OKLab	oklab(39.13% -0.0048 -0.1398)
OKLCH	oklch(39.13% 0.14 268)
XYZ	xyz(7.3714, 5.6262, 26.6788)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263C8F #8F7926

analogous

#26708F #263C8F #45268F

triadic

#263C8F #8F263C #3C8F26

tetradic

#263C8F #8F2670 #8F7926 #268F45

square

#263C8F #8F2670 #8F7926 #268F45

split-complementary

#263C8F #8F4526 #708F26

monochromatic

#0C132E #19285F #263C8F #3350BF #5C75D4

Accessibility & contrast

On white

9.88

#263C8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#263C8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263C8F

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263C8F	#FFFFFF	#000000	##FFFFFF
##263C8F	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004892

Deuteranopia (green-blind)

#003E8D

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #263c8f;
/* rgb */ color: rgb(38, 60, 143);
/* oklch */ color: oklch(39.1% 0.140 268.0);

Tailwind

colors: {
  custom: {
    50: '#6f71b0',
    500: '#263c8f',
    950: '#000000',
  },
}

SCSS

$custom: #263c8f;
$custom-light: #6f71b0;
$custom-dark: #000000;

JSON

{
  "hex": "#263c8f",
  "rgb": {
    "r": 38,
    "g": 60,
    "b": 143
  },
  "hsl": {
    "h": 227.429,
    "s": 58.011,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39132,
    "c": 0.13991,
    "h": 268
  },
  "luminance": 0.05627
}

Semantic roles & 50–950 ramp

primary

#263C8F

secondary

#B9A458

accent

#C147E1

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080711

muted

#7B7A80

Preview Lab

Preview with #263C8F

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

Preview Lab → · Contrast checker → · Palette generator →