#2A3563#2A3563

#2A3563 is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.4% C 0.082 H 271.4°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#2A3563
RGB	rgb(42, 53, 99)
HSL	hsl(228, 40%, 28%)
HSV	hsv(228, 58%, 39%)
CMYK	cmyk(57.6%, 46.5%, 0%, 61.2%)
CIE-LAB	lab(23.47, 10.48, -28.70)
CIE-LCH	lch(23.47, 30.55, 290.06°)
OKLab	oklab(34.41% 0.002 -0.0816)
OKLCH	oklch(34.41% 0.082 271.4)
XYZ	xyz(4.4793, 3.9390, 12.3262)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3563 #63582A

analogous

#2A5263 #2A3563 #3B2A63

triadic

#2A3563 #632A35 #35632A

tetradic

#2A3563 #632A52 #63582A #2A633B

square

#2A3563 #632A52 #63582A #2A633B

split-complementary

#2A3563 #633B2A #52632A

monochromatic

#090C15 #181E38 #2A3563 #3C4C8E #5265B6

Accessibility & contrast

On white

11.75

#2A3563 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#2A3563 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3563

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3563	#FFFFFF	#000000	##FFFFFF
##2A3563	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#213B65

Deuteranopia (green-blind)

#1B3662

Tritanopia (blue-blind)

#0D3F47

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2a3563;
/* rgb */ color: rgb(42, 53, 99);
/* oklch */ color: oklch(34.4% 0.082 271.4);

Tailwind

colors: {
  custom: {
    50: '#686c90',
    500: '#2a3563',
    950: '#000000',
  },
}

SCSS

$custom: #2a3563;
$custom-light: #686c90;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3563",
  "rgb": {
    "r": 42,
    "g": 53,
    "b": 99
  },
  "hsl": {
    "h": 228.421,
    "s": 40.426,
    "l": 27.647
  },
  "oklch": {
    "l": 0.34409,
    "c": 0.0816,
    "h": 271.4
  },
  "luminance": 0.03939
}

Semantic roles & 50–950 ramp

primary

#2A3563

secondary

#958953

accent

#B958D0

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#06060C

muted

#7A7A7D

Preview Lab

Preview with #2A3563

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

Preview Lab → · Contrast checker → · Palette generator →