#2A43B1#2A43B1

#2A43B1 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.7% C 0.177 H 268.1°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#2A43B1
RGB	rgb(42, 67, 177)
HSL	hsl(229, 62%, 43%)
HSV	hsv(229, 76%, 69%)
CMYK	cmyk(76.3%, 62.1%, 0%, 30.6%)
CIE-LAB	lab(33.31, 30.36, -61.15)
CIE-LCH	lch(33.31, 68.27, 296.40°)
OKLab	oklab(43.68% -0.0058 -0.1767)
OKLCH	oklch(43.68% 0.177 268.1)
XYZ	xyz(10.8951, 7.6797, 42.4946)
Luminance	0.0768 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A43B1 #B1982A

analogous

#2A86B1 #2A43B1 #542AB1

triadic

#2A43B1 #B12A43 #43B12A

tetradic

#2A43B1 #B12A86 #B1982A #2AB154

square

#2A43B1 #B12A86 #B1982A #2AB154

split-complementary

#2A43B1 #B1542A #86B12A

monochromatic

#131E4E #1E3080 #2A43B1 #4560D3 #778ADF

Accessibility & contrast

On white

8.28

#2A43B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#2A43B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A43B1

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A43B1	#FFFFFF	#000000	##FFFFFF
##2A43B1	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B5

Deuteranopia (green-blind)

#0048AF

Tritanopia (blue-blind)

#005F73

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2a43b1;
/* rgb */ color: rgb(42, 67, 177);
/* oklch */ color: oklch(43.7% 0.177 268.1);

Tailwind

colors: {
  custom: {
    50: '#7877c9',
    500: '#2a43b1',
    950: '#000000',
  },
}

SCSS

$custom: #2a43b1;
$custom-light: #7877c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2a43b1",
  "rgb": {
    "r": 42,
    "g": 67,
    "b": 177
  },
  "hsl": {
    "h": 228.889,
    "s": 61.644,
    "l": 42.941
  },
  "oklch": {
    "l": 0.43679,
    "c": 0.17683,
    "h": 268.1
  },
  "luminance": 0.07681
}

Semantic roles & 50–950 ramp

primary

#2A43B1

secondary

#C6B670

accent

#C743E5

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2A43B1

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

Preview Lab → · Contrast checker → · Palette generator →