#263F66#263F66

#263F66 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.8% C 0.074 H 259.0°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#263F66
RGB	rgb(38, 63, 102)
HSL	hsl(217, 46%, 27%)
HSV	hsv(217, 63%, 40%)
CMYK	cmyk(62.7%, 38.2%, 0%, 60%)
CIE-LAB	lab(26.52, 3.74, -25.81)
CIE-LCH	lch(26.52, 26.08, 278.24°)
OKLab	oklab(36.76% -0.0142 -0.0731)
OKLCH	oklch(36.76% 0.074 259)
XYZ	xyz(4.9743, 4.9260, 13.2565)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263F66 #664D26

analogous

#265F66 #263F66 #2D2666

triadic

#263F66 #66263F #3F6626

tetradic

#263F66 #66265F #664D26 #26662D

square

#263F66 #66265F #664D26 #26662D

split-complementary

#263F66 #662D26 #5F6626

monochromatic

#080E16 #152339 #263F66 #375B93 #4B77BC

Accessibility & contrast

On white

10.58

#263F66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#263F66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263F66

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263F66	#FFFFFF	#000000	##FFFFFF
##263F66	1.00	10.58	1.99	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4268

Deuteranopia (green-blind)

#263C65

Tritanopia (blue-blind)

#00484D

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #263f66;
/* rgb */ color: rgb(38, 63, 102);
/* oklch */ color: oklch(36.8% 0.074 259.0);

Tailwind

colors: {
  custom: {
    50: '#667392',
    500: '#263f66',
    950: '#000000',
  },
}

SCSS

$custom: #263f66;
$custom-light: #667392;
$custom-dark: #000000;

JSON

{
  "hex": "#263f66",
  "rgb": {
    "r": 38,
    "g": 63,
    "b": 102
  },
  "hsl": {
    "h": 216.563,
    "s": 45.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.36759,
    "c": 0.07446,
    "h": 259
  },
  "luminance": 0.04926
}

Semantic roles & 50–950 ramp

primary

#263F66

secondary

#997C4F

accent

#A252D5

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06080D

muted

#7A7B7D

Preview Lab

Preview with #263F66

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

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