#263D99#263D99

#263D99 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.153 H 268.0°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#263D99
RGB	rgb(38, 61, 153)
HSL	hsl(228, 60%, 37%)
HSV	hsv(228, 75%, 60%)
CMYK	cmyk(75.2%, 60.1%, 0%, 40%)
CIE-LAB	lab(29.53, 24.80, -52.87)
CIE-LCH	lch(29.53, 58.40, 295.13°)
OKLab	oklab(40.2% -0.0053 -0.1526)
OKLCH	oklch(40.2% 0.153 268)
XYZ	xyz(8.2158, 6.0486, 30.8653)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263D99 #998226

analogous

#267699 #263D99 #492699

triadic

#263D99 #99263D #3D9926

tetradic

#263D99 #992676 #998226 #269949

square

#263D99 #992676 #998226 #269949

split-complementary

#263D99 #994926 #769926

monochromatic

#0E1637 #1A2968 #263D99 #3251CA #6279D8

Accessibility & contrast

On white

9.50

#263D99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#263D99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263D99

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263D99	#FFFFFF	#000000	##FFFFFF
##263D99	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9C

Deuteranopia (green-blind)

#004097

Tritanopia (blue-blind)

#005465

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #263d99;
/* rgb */ color: rgb(38, 61, 153);
/* oklch */ color: oklch(40.2% 0.153 268.0);

Tailwind

colors: {
  custom: {
    50: '#7272b8',
    500: '#263d99',
    950: '#000000',
  },
}

SCSS

$custom: #263d99;
$custom-light: #7272b8;
$custom-dark: #000000;

JSON

{
  "hex": "#263d99",
  "rgb": {
    "r": 38,
    "g": 61,
    "b": 153
  },
  "hsl": {
    "h": 228,
    "s": 60.209,
    "l": 37.451
  },
  "oklch": {
    "l": 0.40198,
    "c": 0.15271,
    "h": 268
  },
  "luminance": 0.06049
}

Semantic roles & 50–950 ramp

primary

#263D99

secondary

#BDAA5E

accent

#C444E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #263D99

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

Preview Lab → · Contrast checker → · Palette generator →