#263FB0#263FB0

#263FB0 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.181 H 267.8°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#263FB0
RGB	rgb(38, 63, 176)
HSL	hsl(229, 64%, 42%)
HSV	hsv(229, 78%, 69%)
CMYK	cmyk(78.4%, 64.2%, 0%, 31%)
CIE-LAB	lab(32.03, 32.18, -62.64)
CIE-LCH	lch(32.03, 70.42, 297.19°)
OKLab	oklab(42.66% -0.0068 -0.1812)
OKLCH	oklch(42.66% 0.181 267.8)
XYZ	xyz(10.4106, 7.1005, 41.8877)
Luminance	0.0710 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263FB0 #B09726

analogous

#2684B0 #263FB0 #5226B0

triadic

#263FB0 #B0263F #3FB026

tetradic

#263FB0 #B02684 #B09726 #26B052

square

#263FB0 #B02684 #B09726 #26B052

split-complementary

#263FB0 #B05226 #84B026

monochromatic

#101B4B #1B2D7E #263FB0 #3E59D5 #7085E0

Accessibility & contrast

On white

8.68

#263FB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#263FB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263FB0

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263FB0	#FFFFFF	#000000	##FFFFFF
##263FB0	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B4

Deuteranopia (green-blind)

#0045AE

Tritanopia (blue-blind)

#005D71

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #263fb0;
/* rgb */ color: rgb(38, 63, 176);
/* oklch */ color: oklch(42.7% 0.181 267.8);

Tailwind

colors: {
  custom: {
    50: '#7774c9',
    500: '#263fb0',
    950: '#000000',
  },
}

SCSS

$custom: #263fb0;
$custom-light: #7774c9;
$custom-dark: #000000;

JSON

{
  "hex": "#263fb0",
  "rgb": {
    "r": 38,
    "g": 63,
    "b": 176
  },
  "hsl": {
    "h": 229.13,
    "s": 64.486,
    "l": 41.961
  },
  "oklch": {
    "l": 0.42664,
    "c": 0.18136,
    "h": 267.8
  },
  "luminance": 0.07102
}

Semantic roles & 50–950 ramp

primary

#263FB0

secondary

#C7B66B

accent

#C940E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #263FB0

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

Preview Lab → · Contrast checker → · Palette generator →