#263F99#263F99

#263F99 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.6% C 0.150 H 267.4°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#263F99
RGB	rgb(38, 63, 153)
HSL	hsl(227, 60%, 37%)
HSV	hsv(227, 75%, 60%)
CMYK	cmyk(75.2%, 58.8%, 0%, 40%)
CIE-LAB	lab(30.07, 23.45, -51.99)
CIE-LCH	lch(30.07, 57.04, 294.28°)
OKLab	oklab(40.6% -0.0068 -0.15)
OKLCH	oklch(40.6% 0.15 267.4)
XYZ	xyz(8.3246, 6.2661, 30.9016)
Luminance	0.0627 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263F99 #998026

analogous

#267899 #263F99 #472699

triadic

#263F99 #99263F #3F9926

tetradic

#263F99 #992678 #998026 #269947

square

#263F99 #992678 #998026 #269947

split-complementary

#263F99 #994726 #789926

monochromatic

#0E1737 #1A2B68 #263F99 #3253CA #627BD8

Accessibility & contrast

On white

9.32

#263F99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#263F99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263F99

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263F99	#FFFFFF	#000000	##FFFFFF
##263F99	1.00	9.32	2.25	9.32
#FFFFFF	9.32	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9C

Deuteranopia (green-blind)

#004297

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #263f99;
/* rgb */ color: rgb(38, 63, 153);
/* oklch */ color: oklch(40.6% 0.150 267.4);

Tailwind

colors: {
  custom: {
    50: '#7273b8',
    500: '#263f99',
    950: '#000000',
  },
}

SCSS

$custom: #263f99;
$custom-light: #7273b8;
$custom-dark: #000000;

JSON

{
  "hex": "#263f99",
  "rgb": {
    "r": 38,
    "g": 63,
    "b": 153
  },
  "hsl": {
    "h": 226.957,
    "s": 60.209,
    "l": 37.451
  },
  "oklch": {
    "l": 0.40601,
    "c": 0.15017,
    "h": 267.4
  },
  "luminance": 0.06267
}

Semantic roles & 50–950 ramp

primary

#263F99

secondary

#BDA85E

accent

#C144E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #263F99

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

Preview Lab → · Contrast checker → · Palette generator →