#263B66#263B66

#263B66 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.8% C 0.080 H 263.3°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#263B66
RGB	rgb(38, 59, 102)
HSL	hsl(220, 46%, 27%)
HSV	hsv(220, 63%, 40%)
CMYK	cmyk(62.7%, 42.2%, 0%, 60%)
CIE-LAB	lab(25.26, 6.48, -27.82)
CIE-LCH	lch(25.26, 28.56, 283.11°)
OKLab	oklab(35.78% -0.0093 -0.079)
OKLCH	oklch(35.78% 0.08 263.3)
XYZ	xyz(4.7607, 4.4989, 13.1853)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B66 #665126

analogous

#265B66 #263B66 #312666

triadic

#263B66 #66263B #3B6626

tetradic

#263B66 #66265B #665126 #266631

square

#263B66 #66265B #665126 #266631

split-complementary

#263B66 #663126 #5B6626

monochromatic

#080D16 #152139 #263B66 #375593 #4B70BC

Accessibility & contrast

On white

11.05

#263B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#263B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B66

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B66	#FFFFFF	#000000	##FFFFFF
##263B66	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293F68

Deuteranopia (green-blind)

#203965

Tritanopia (blue-blind)

#00454B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #263b66;
/* rgb */ color: rgb(38, 59, 102);
/* oklch */ color: oklch(35.8% 0.080 263.3);

Tailwind

colors: {
  custom: {
    50: '#677092',
    500: '#263b66',
    950: '#000000',
  },
}

SCSS

$custom: #263b66;
$custom-light: #677092;
$custom-dark: #000000;

JSON

{
  "hex": "#263b66",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 102
  },
  "hsl": {
    "h": 220.313,
    "s": 45.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.35777,
    "c": 0.07955,
    "h": 263.3
  },
  "luminance": 0.04499
}

Semantic roles & 50–950 ramp

primary

#263B66

secondary

#99814F

accent

#AA52D5

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #263B66

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

Preview Lab → · Contrast checker → · Palette generator →