#2A42B1#2A42B1

#2A42B1 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.5% C 0.178 H 268.3°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#2A42B1
RGB	rgb(42, 66, 177)
HSL	hsl(229, 62%, 43%)
HSV	hsv(229, 76%, 69%)
CMYK	cmyk(76.3%, 62.7%, 0%, 30.6%)
CIE-LAB	lab(33.05, 31.01, -61.56)
CIE-LCH	lch(33.05, 68.93, 296.74°)
OKLab	oklab(43.49% -0.0051 -0.178)
OKLCH	oklch(43.49% 0.178 268.3)
XYZ	xyz(10.8361, 7.5618, 42.4749)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A42B1 #B1992A

analogous

#2A86B1 #2A42B1 #552AB1

triadic

#2A42B1 #B12A42 #42B12A

tetradic

#2A42B1 #B12A86 #B1992A #2AB155

square

#2A42B1 #B12A86 #B1992A #2AB155

split-complementary

#2A42B1 #B1552A #86B12A

monochromatic

#131D4E #1E3080 #2A42B1 #455ED3 #7789DF

Accessibility & contrast

On white

8.36

#2A42B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#2A42B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A42B1

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A42B1	#FFFFFF	#000000	##FFFFFF
##2A42B1	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B5

Deuteranopia (green-blind)

#0048AF

Tritanopia (blue-blind)

#005F73

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2a42b1;
/* rgb */ color: rgb(42, 66, 177);
/* oklch */ color: oklch(43.5% 0.178 268.3);

Tailwind

colors: {
  custom: {
    50: '#7976c9',
    500: '#2a42b1',
    950: '#000000',
  },
}

SCSS

$custom: #2a42b1;
$custom-light: #7976c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2a42b1",
  "rgb": {
    "r": 42,
    "g": 66,
    "b": 177
  },
  "hsl": {
    "h": 229.333,
    "s": 61.644,
    "l": 42.941
  },
  "oklch": {
    "l": 0.43492,
    "c": 0.17804,
    "h": 268.3
  },
  "luminance": 0.07563
}

Semantic roles & 50–950 ramp

primary

#2A42B1

secondary

#C6B770

accent

#C843E5

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2A42B1

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

Preview Lab → · Contrast checker → · Palette generator →