#263F6B#263F6B

#263F6B is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.1% C 0.082 H 261.0°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#263F6B
RGB	rgb(38, 63, 107)
HSL	hsl(218, 48%, 28%)
HSV	hsv(218, 64%, 42%)
CMYK	cmyk(64.5%, 41.1%, 0%, 58%)
CIE-LAB	lab(26.82, 5.63, -28.55)
CIE-LCH	lch(26.82, 29.10, 281.15°)
OKLab	oklab(37.08% -0.0129 -0.0811)
OKLCH	oklch(37.08% 0.082 261)
XYZ	xyz(5.2297, 5.0282, 14.6020)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263F6B #6B5226

analogous

#26616B #263F6B #2F266B

triadic

#263F6B #6B263F #3F6B26

tetradic

#263F6B #6B2661 #6B5226 #266B2F

square

#263F6B #6B2661 #6B5226 #266B2F

split-complementary

#263F6B #6B2F26 #616B26

monochromatic

#080D17 #16243E #263F6B #365A98 #4C76BF

Accessibility & contrast

On white

10.47

#263F6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#263F6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263F6B

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263F6B	#FFFFFF	#000000	##FFFFFF
##263F6B	1.00	10.47	2.01	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C436D

Deuteranopia (green-blind)

#223C6A

Tritanopia (blue-blind)

#00494F

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #263f6b;
/* rgb */ color: rgb(38, 63, 107);
/* oklch */ color: oklch(37.1% 0.082 261.0);

Tailwind

colors: {
  custom: {
    50: '#677395',
    500: '#263f6b',
    950: '#000000',
  },
}

SCSS

$custom: #263f6b;
$custom-light: #677395;
$custom-dark: #000000;

JSON

{
  "hex": "#263f6b",
  "rgb": {
    "r": 38,
    "g": 63,
    "b": 107
  },
  "hsl": {
    "h": 218.261,
    "s": 47.586,
    "l": 28.431
  },
  "oklch": {
    "l": 0.37081,
    "c": 0.08213,
    "h": 261
  },
  "luminance": 0.05029
}

Semantic roles & 50–950 ramp

primary

#263F6B

secondary

#9E814F

accent

#A651D7

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #263F6B

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

Preview Lab → · Contrast checker → · Palette generator →