#2B42A3#2B42A3

#2B42A3 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.3% C 0.159 H 268.5°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#2B42A3
RGB	rgb(43, 66, 163)
HSL	hsl(229, 58%, 40%)
HSV	hsv(229, 74%, 64%)
CMYK	cmyk(73.6%, 59.5%, 0%, 36.1%)
CIE-LAB	lab(31.93, 25.89, -55.02)
CIE-LCH	lch(31.93, 60.81, 295.20°)
OKLab	oklab(42.31% -0.0042 -0.1587)
OKLCH	oklch(42.31% 0.159 268.5)
XYZ	xyz(9.5531, 7.0534, 35.5012)
Luminance	0.0705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B42A3 #A38C2B

analogous

#2B7EA3 #2B42A3 #502BA3

triadic

#2B42A3 #A32B42 #42A32B

tetradic

#2B42A3 #A32B7E #A38C2B #2BA350

square

#2B42A3 #A32B7E #A38C2B #2BA350

split-complementary

#2B42A3 #A3502B #7EA32B

monochromatic

#111B42 #1E2E73 #2B42A3 #3F5ACC #6F84D9

Accessibility & contrast

On white

8.71

#2B42A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#2B42A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B42A3

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B42A3	#FFFFFF	#000000	##FFFFFF
##2B42A3	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	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: #2b42a3;
/* rgb */ color: rgb(43, 66, 163);
/* oklch */ color: oklch(42.3% 0.159 268.5);

Tailwind

colors: {
  custom: {
    50: '#7676bf',
    500: '#2b42a3',
    950: '#000000',
  },
}

SCSS

$custom: #2b42a3;
$custom-light: #7676bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2b42a3",
  "rgb": {
    "r": 43,
    "g": 66,
    "b": 163
  },
  "hsl": {
    "h": 228.5,
    "s": 58.252,
    "l": 40.392
  },
  "oklch": {
    "l": 0.42305,
    "c": 0.15881,
    "h": 268.5
  },
  "luminance": 0.07054
}

Semantic roles & 50–950 ramp

primary

#2B42A3

secondary

#C0B06A

accent

#C446E1

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2B42A3

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

Preview Lab → · Contrast checker → · Palette generator →