#263CB0#263CB0

#263CB0 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.1% C 0.185 H 268.4°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#263CB0
RGB	rgb(38, 60, 176)
HSL	hsl(230, 64%, 42%)
HSV	hsv(230, 78%, 69%)
CMYK	cmyk(78.4%, 65.9%, 0%, 31%)
CIE-LAB	lab(31.29, 34.13, -63.85)
CIE-LCH	lch(31.29, 72.40, 298.12°)
OKLab	oklab(42.12% -0.0051 -0.1848)
OKLCH	oklch(42.12% 0.185 268.4)
XYZ	xyz(10.2489, 6.7772, 41.8339)
Luminance	0.0678 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263CB0 #B09A26

analogous

#2681B0 #263CB0 #5526B0

triadic

#263CB0 #B0263C #3CB026

tetradic

#263CB0 #B02681 #B09A26 #26B055

square

#263CB0 #B02681 #B09A26 #26B055

split-complementary

#263CB0 #B05526 #81B026

monochromatic

#101A4B #1B2B7E #263CB0 #3E56D5 #7082E0

Accessibility & contrast

On white

8.91

#263CB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#263CB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263CB0

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263CB0	#FFFFFF	#000000	##FFFFFF
##263CB0	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B4

Deuteranopia (green-blind)

#0043AE

Tritanopia (blue-blind)

#005B70

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #263cb0;
/* rgb */ color: rgb(38, 60, 176);
/* oklch */ color: oklch(42.1% 0.185 268.4);

Tailwind

colors: {
  custom: {
    50: '#7871c9',
    500: '#263cb0',
    950: '#000000',
  },
}

SCSS

$custom: #263cb0;
$custom-light: #7871c9;
$custom-dark: #000000;

JSON

{
  "hex": "#263cb0",
  "rgb": {
    "r": 38,
    "g": 60,
    "b": 176
  },
  "hsl": {
    "h": 230.435,
    "s": 64.486,
    "l": 41.961
  },
  "oklch": {
    "l": 0.4212,
    "c": 0.18488,
    "h": 268.4
  },
  "luminance": 0.06778
}

Semantic roles & 50–950 ramp

primary

#263CB0

secondary

#C7B86B

accent

#CD40E7

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #263CB0

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

Preview Lab → · Contrast checker → · Palette generator →