#263D9B#263D9B

#263D9B is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.4% C 0.155 H 268.0°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#263D9B
RGB	rgb(38, 61, 155)
HSL	hsl(228, 61%, 38%)
HSV	hsv(228, 75%, 61%)
CMYK	cmyk(75.5%, 60.6%, 0%, 39.2%)
CIE-LAB	lab(29.70, 25.57, -53.82)
CIE-LCH	lch(29.70, 59.59, 295.41°)
OKLab	oklab(40.37% -0.0053 -0.1554)
OKLCH	oklch(40.37% 0.155 268)
XYZ	xyz(8.3824, 6.1152, 31.7426)
Luminance	0.0612 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263D9B #9B8426

analogous

#26779B #263D9B #49269B

triadic

#263D9B #9B263D #3D9B26

tetradic

#263D9B #9B2677 #9B8426 #269B49

square

#263D9B #9B2677 #9B8426 #269B49

split-complementary

#263D9B #9B4926 #779B26

monochromatic

#0E1639 #1A2A6A #263D9B #3250CC #637AD9

Accessibility & contrast

On white

9.45

#263D9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#263D9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263D9B

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263D9B	#FFFFFF	#000000	##FFFFFF
##263D9B	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9E

Deuteranopia (green-blind)

#004199

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #263d9b;
/* rgb */ color: rgb(38, 61, 155);
/* oklch */ color: oklch(40.4% 0.155 268.0);

Tailwind

colors: {
  custom: {
    50: '#7272b9',
    500: '#263d9b',
    950: '#000000',
  },
}

SCSS

$custom: #263d9b;
$custom-light: #7272b9;
$custom-dark: #000000;

JSON

{
  "hex": "#263d9b",
  "rgb": {
    "r": 38,
    "g": 61,
    "b": 155
  },
  "hsl": {
    "h": 228.205,
    "s": 60.622,
    "l": 37.843
  },
  "oklch": {
    "l": 0.40374,
    "c": 0.15549,
    "h": 268
  },
  "luminance": 0.06116
}

Semantic roles & 50–950 ramp

primary

#263D9B

secondary

#BEAB5F

accent

#C444E4

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #263D9B

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

Preview Lab → · Contrast checker → · Palette generator →