#263B99#263B99

#263B99 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.8% C 0.155 H 268.6°. Best body text is #FFFFFF at 9.69:1 contrast (WCAG AA passes).

Color values

HEX	#263B99
RGB	rgb(38, 59, 153)
HSL	hsl(229, 60%, 37%)
HSV	hsv(229, 75%, 60%)
CMYK	cmyk(75.2%, 61.4%, 0%, 40%)
CIE-LAB	lab(29.00, 26.16, -53.74)
CIE-LCH	lch(29.00, 59.77, 295.95°)
OKLab	oklab(39.8% -0.0039 -0.1552)
OKLCH	oklch(39.8% 0.155 268.6)
XYZ	xyz(8.1111, 5.8390, 30.8304)
Luminance	0.0584 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B99 #998426

analogous

#267599 #263B99 #4A2699

triadic

#263B99 #99263B #3B9926

tetradic

#263B99 #992675 #998426 #26994A

square

#263B99 #992675 #998426 #26994A

split-complementary

#263B99 #994A26 #759926

monochromatic

#0E1537 #1A2868 #263B99 #324ECA #6277D8

Accessibility & contrast

On white

9.69

#263B99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#263B99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B99

9.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B99	#FFFFFF	#000000	##FFFFFF
##263B99	1.00	9.69	2.17	9.69
#FFFFFF	9.69	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9C

Deuteranopia (green-blind)

#003F97

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #263b99;
/* rgb */ color: rgb(38, 59, 153);
/* oklch */ color: oklch(39.8% 0.155 268.6);

Tailwind

colors: {
  custom: {
    50: '#7270b8',
    500: '#263b99',
    950: '#000000',
  },
}

SCSS

$custom: #263b99;
$custom-light: #7270b8;
$custom-dark: #000000;

JSON

{
  "hex": "#263b99",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 153
  },
  "hsl": {
    "h": 229.043,
    "s": 60.209,
    "l": 37.451
  },
  "oklch": {
    "l": 0.39803,
    "c": 0.15525,
    "h": 268.6
  },
  "luminance": 0.0584
}

Semantic roles & 50–950 ramp

primary

#263B99

secondary

#BDAC5E

accent

#C644E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #263B99

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

Preview Lab → · Contrast checker → · Palette generator →