#2A42A3#2A42A3

#2A42A3 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.3% C 0.159 H 268.2°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#2A42A3
RGB	rgb(42, 66, 163)
HSL	hsl(228, 59%, 40%)
HSV	hsv(228, 74%, 64%)
CMYK	cmyk(74.2%, 59.5%, 0%, 36.1%)
CIE-LAB	lab(31.88, 25.76, -55.10)
CIE-LCH	lch(31.88, 60.82, 295.05°)
OKLab	oklab(42.26% -0.0051 -0.159)
OKLCH	oklch(42.26% 0.159 268.2)
XYZ	xyz(9.5116, 7.0320, 35.4993)
Luminance	0.0703 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A42A3 #A38B2A

analogous

#2A7EA3 #2A42A3 #4E2AA3

triadic

#2A42A3 #A32A42 #42A32A

tetradic

#2A42A3 #A32A7E #A38B2A #2AA34E

square

#2A42A3 #A32A7E #A38B2A #2AA34E

split-complementary

#2A42A3 #A34E2A #7EA32A

monochromatic

#111B42 #1D2E72 #2A42A3 #3D5ACD #6E83DA

Accessibility & contrast

On white

8.73

#2A42A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#2A42A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A42A3

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A42A3	#FFFFFF	#000000	##FFFFFF
##2A42A3	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A6

Deuteranopia (green-blind)

#0046A1

Tritanopia (blue-blind)

#005A6C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2a42a3;
/* rgb */ color: rgb(42, 66, 163);
/* oklch */ color: oklch(42.3% 0.159 268.2);

Tailwind

colors: {
  custom: {
    50: '#7576bf',
    500: '#2a42a3',
    950: '#000000',
  },
}

SCSS

$custom: #2a42a3;
$custom-light: #7576bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2a42a3",
  "rgb": {
    "r": 42,
    "g": 66,
    "b": 163
  },
  "hsl": {
    "h": 228.099,
    "s": 59.024,
    "l": 40.196
  },
  "oklch": {
    "l": 0.42256,
    "c": 0.15909,
    "h": 268.2
  },
  "luminance": 0.07033
}

Semantic roles & 50–950 ramp

primary

#2A42A3

secondary

#C0AF68

accent

#C346E2

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2A42A3

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

Preview Lab → · Contrast checker → · Palette generator →