#2643AD#2643AD

#2643AD is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.1% C 0.173 H 266.9°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#2643AD
RGB	rgb(38, 67, 173)
HSL	hsl(227, 64%, 41%)
HSV	hsv(227, 78%, 68%)
CMYK	cmyk(78%, 61.3%, 0%, 32.2%)
CIE-LAB	lab(32.79, 28.42, -59.61)
CIE-LCH	lch(32.79, 66.04, 295.49°)
OKLab	oklab(43.15% -0.0093 -0.1723)
OKLCH	oklch(43.15% 0.173 266.9)
XYZ	xyz(10.3467, 7.4423, 40.4183)
Luminance	0.0744 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2643AD #AD9026

analogous

#2687AD #2643AD #4D26AD

triadic

#2643AD #AD2643 #43AD26

tetradic

#2643AD #AD2687 #AD9026 #26AD4D

square

#2643AD #AD2687 #AD9026 #26AD4D

split-complementary

#2643AD #AD4D26 #87AD26

monochromatic

#101C49 #1B307B #2643AD #3C5DD4 #6E86DF

Accessibility & contrast

On white

8.44

#2643AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#2643AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2643AD

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2643AD	#FFFFFF	#000000	##FFFFFF
##2643AD	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B0

Deuteranopia (green-blind)

#0047AB

Tritanopia (blue-blind)

#005E71

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2643ad;
/* rgb */ color: rgb(38, 67, 173);
/* oklch */ color: oklch(43.1% 0.173 266.9);

Tailwind

colors: {
  custom: {
    50: '#7676c6',
    500: '#2643ad',
    950: '#000000',
  },
}

SCSS

$custom: #2643ad;
$custom-light: #7676c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2643ad",
  "rgb": {
    "r": 38,
    "g": 67,
    "b": 173
  },
  "hsl": {
    "h": 227.111,
    "s": 63.981,
    "l": 41.373
  },
  "oklch": {
    "l": 0.43145,
    "c": 0.17256,
    "h": 266.9
  },
  "luminance": 0.07444
}

Semantic roles & 50–950 ramp

primary

#2643AD

secondary

#C6B269

accent

#C341E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2643AD

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

Preview Lab → · Contrast checker → · Palette generator →