#263B63#263B63

#263B63 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.6% C 0.075 H 262.3°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#263B63
RGB	rgb(38, 59, 99)
HSL	hsl(219, 45%, 27%)
HSV	hsv(219, 62%, 39%)
CMYK	cmyk(61.6%, 40.4%, 0%, 61.2%)
CIE-LAB	lab(25.08, 5.35, -26.16)
CIE-LCH	lch(25.08, 26.70, 281.55°)
OKLab	oklab(35.58% -0.0101 -0.0742)
OKLCH	oklch(35.58% 0.075 262.3)
XYZ	xyz(4.6146, 4.4405, 12.4159)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B63 #634E26

analogous

#265A63 #263B63 #2F2663

triadic

#263B63 #63263B #3B6326

tetradic

#263B63 #63265A #634E26 #26632F

square

#263B63 #63265A #634E26 #26632F

split-complementary

#263B63 #632F26 #5A6326

monochromatic

#080D16 #152137 #263B63 #37558F #4A70B9

Accessibility & contrast

On white

11.12

#263B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#263B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B63

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B63	#FFFFFF	#000000	##FFFFFF
##263B63	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3F65

Deuteranopia (green-blind)

#223962

Tritanopia (blue-blind)

#00444A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #263b63;
/* rgb */ color: rgb(38, 59, 99);
/* oklch */ color: oklch(35.6% 0.075 262.3);

Tailwind

colors: {
  custom: {
    50: '#66708f',
    500: '#263b63',
    950: '#000000',
  },
}

SCSS

$custom: #263b63;
$custom-light: #66708f;
$custom-dark: #000000;

JSON

{
  "hex": "#263b63",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 99
  },
  "hsl": {
    "h": 219.344,
    "s": 44.526,
    "l": 26.863
  },
  "oklch": {
    "l": 0.35579,
    "c": 0.07484,
    "h": 262.3
  },
  "luminance": 0.04441
}

Semantic roles & 50–950 ramp

primary

#263B63

secondary

#967E4F

accent

#A854D4

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #263B63

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

Preview Lab → · Contrast checker → · Palette generator →