#263B5C#263B5C

#263B5C is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.1% C 0.064 H 259.1°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#263B5C
RGB	rgb(38, 59, 92)
HSL	hsl(217, 42%, 25%)
HSV	hsv(217, 59%, 36%)
CMYK	cmyk(58.7%, 35.9%, 0%, 63.9%)
CIE-LAB	lab(24.68, 2.75, -22.24)
CIE-LCH	lch(24.68, 22.41, 277.04°)
OKLab	oklab(35.14% -0.012 -0.0627)
OKLCH	oklch(35.14% 0.064 259.1)
XYZ	xyz(4.2944, 4.3124, 10.7292)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B5C #5C4726

analogous

#26565C #263B5C #2C265C

triadic

#263B5C #5C263B #3B5C26

tetradic

#263B5C #5C2656 #5C4726 #265C2C

square

#263B5C #5C2656 #5C4726 #265C2C

split-complementary

#263B5C #5C2C26 #565C26

monochromatic

#090E16 #141F31 #263B5C #385787 #4A73B3

Accessibility & contrast

On white

11.27

#263B5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#263B5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B5C

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B5C	#FFFFFF	#000000	##FFFFFF
##263B5C	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3D5D

Deuteranopia (green-blind)

#27385B

Tritanopia (blue-blind)

#064247

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #263b5c;
/* rgb */ color: rgb(38, 59, 92);
/* oklch */ color: oklch(35.1% 0.064 259.1);

Tailwind

colors: {
  custom: {
    50: '#65708a',
    500: '#263b5c',
    950: '#000000',
  },
}

SCSS

$custom: #263b5c;
$custom-light: #65708a;
$custom-dark: #000000;

JSON

{
  "hex": "#263b5c",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 92
  },
  "hsl": {
    "h": 216.667,
    "s": 41.538,
    "l": 25.49
  },
  "oklch": {
    "l": 0.35139,
    "c": 0.06387,
    "h": 259.1
  },
  "luminance": 0.04313
}

Semantic roles & 50–950 ramp

primary

#263B5C

secondary

#8F764F

accent

#A256D1

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070B

muted

#7A7A7C

Preview Lab

Preview with #263B5C

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

Preview Lab → · Contrast checker → · Palette generator →