#2643AB#2643AB

#2643AB is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.0% C 0.170 H 266.9°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#2643AB
RGB	rgb(38, 67, 171)
HSL	hsl(227, 64%, 41%)
HSV	hsv(227, 78%, 67%)
CMYK	cmyk(77.8%, 60.8%, 0%, 32.9%)
CIE-LAB	lab(32.62, 27.66, -58.69)
CIE-LCH	lch(32.62, 64.88, 295.24°)
OKLab	oklab(42.97% -0.0093 -0.1696)
OKLCH	oklch(42.97% 0.17 266.9)
XYZ	xyz(10.1546, 7.3655, 39.4067)
Luminance	0.0737 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2643AB #AB8E26

analogous

#2685AB #2643AB #4B26AB

triadic

#2643AB #AB2643 #43AB26

tetradic

#2643AB #AB2685 #AB8E26 #26AB4B

square

#2643AB #AB2685 #AB8E26 #26AB4B

split-complementary

#2643AB #AB4B26 #85AB26

monochromatic

#101C47 #1B2F79 #2643AB #3B5CD3 #6D86DF

Accessibility & contrast

On white

8.49

#2643AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#2643AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2643AB

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2643AB	#FFFFFF	#000000	##FFFFFF
##2643AB	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AE

Deuteranopia (green-blind)

#0047A9

Tritanopia (blue-blind)

#005E70

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2643ab;
/* rgb */ color: rgb(38, 67, 171);
/* oklch */ color: oklch(43.0% 0.170 266.9);

Tailwind

colors: {
  custom: {
    50: '#7676c5',
    500: '#2643ab',
    950: '#000000',
  },
}

SCSS

$custom: #2643ab;
$custom-light: #7676c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2643ab",
  "rgb": {
    "r": 38,
    "g": 67,
    "b": 171
  },
  "hsl": {
    "h": 226.917,
    "s": 63.636,
    "l": 40.98
  },
  "oklch": {
    "l": 0.42968,
    "c": 0.16987,
    "h": 266.9
  },
  "luminance": 0.07367
}

Semantic roles & 50–950 ramp

primary

#2643AB

secondary

#C5B168

accent

#C341E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2643AB

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

Preview Lab → · Contrast checker → · Palette generator →