#263C5B#263C5B

#263C5B is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.3% C 0.061 H 257.1°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#263C5B
RGB	rgb(38, 60, 91)
HSL	hsl(215, 41%, 25%)
HSV	hsv(215, 58%, 36%)
CMYK	cmyk(58.2%, 34.1%, 0%, 64.3%)
CIE-LAB	lab(24.95, 1.70, -21.17)
CIE-LCH	lch(24.95, 21.23, 274.59°)
OKLab	oklab(35.33% -0.0137 -0.0596)
OKLCH	oklch(35.33% 0.061 257.1)
XYZ	xyz(4.3029, 4.3988, 10.5178)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263C5B #5B4526

analogous

#26565B #263C5B #2A265B

triadic

#263C5B #5B263C #3C5B26

tetradic

#263C5B #5B2656 #5B4526 #265B2A

square

#263C5B #5B2656 #5B4526 #265B2A

split-complementary

#263C5B #5B2A26 #565B26

monochromatic

#090E16 #142030 #263C5B #385886 #4A75B1

Accessibility & contrast

On white

11.17

#263C5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#263C5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263C5B

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263C5B	#FFFFFF	#000000	##FFFFFF
##263C5B	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303E5C

Deuteranopia (green-blind)

#29395A

Tritanopia (blue-blind)

#074347

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #263c5b;
/* rgb */ color: rgb(38, 60, 91);
/* oklch */ color: oklch(35.3% 0.061 257.1);

Tailwind

colors: {
  custom: {
    50: '#657189',
    500: '#263c5b',
    950: '#000000',
  },
}

SCSS

$custom: #263c5b;
$custom-light: #657189;
$custom-dark: #000000;

JSON

{
  "hex": "#263c5b",
  "rgb": {
    "r": 38,
    "g": 60,
    "b": 91
  },
  "hsl": {
    "h": 215.094,
    "s": 41.085,
    "l": 25.294
  },
  "oklch": {
    "l": 0.35332,
    "c": 0.06115,
    "h": 257.1
  },
  "luminance": 0.04399
}

Semantic roles & 50–950 ramp

primary

#263C5B

secondary

#8E744F

accent

#9E57D1

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070B

muted

#7A7A7C

Preview Lab

Preview with #263C5B

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

Preview Lab → · Contrast checker → · Palette generator →