#2A37B2#2A37B2

#2A37B2 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.6% C 0.192 H 270.4°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#2A37B2
RGB	rgb(42, 55, 178)
HSL	hsl(234, 62%, 43%)
HSV	hsv(234, 76%, 70%)
CMYK	cmyk(76.4%, 69.1%, 0%, 30.2%)
CIE-LAB	lab(30.49, 38.40, -66.36)
CIE-LCH	lch(30.49, 76.67, 300.06°)
OKLab	oklab(41.65% 0.0012 -0.1921)
OKLCH	oklch(41.65% 0.192 270.4)
XYZ	xyz(10.3542, 6.4378, 42.8078)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A37B2 #B2A52A

analogous

#2A7BB2 #2A37B2 #612AB2

triadic

#2A37B2 #B22A37 #37B22A

tetradic

#2A37B2 #B22A7B #B2A52A #2AB261

square

#2A37B2 #B22A7B #B2A52A #2AB261

split-complementary

#2A37B2 #B2612A #7BB22A

monochromatic

#13184F #1E2880 #2A37B2 #4653D3 #7781DF

Accessibility & contrast

On white

9.18

#2A37B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#2A37B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A37B2

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A37B2	#FFFFFF	#000000	##FFFFFF
##2A37B2	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB6

Deuteranopia (green-blind)

#0041B0

Tritanopia (blue-blind)

#005970

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2a37b2;
/* rgb */ color: rgb(42, 55, 178);
/* oklch */ color: oklch(41.6% 0.192 270.4);

Tailwind

colors: {
  custom: {
    50: '#7a6eca',
    500: '#2a37b2',
    950: '#000000',
  },
}

SCSS

$custom: #2a37b2;
$custom-light: #7a6eca;
$custom-dark: #000000;

JSON

{
  "hex": "#2a37b2",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 178
  },
  "hsl": {
    "h": 234.265,
    "s": 61.818,
    "l": 43.137
  },
  "oklch": {
    "l": 0.41645,
    "c": 0.19207,
    "h": 270.4
  },
  "luminance": 0.06439
}

Semantic roles & 50–950 ramp

primary

#2A37B2

secondary

#C7BF71

accent

#D543E5

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2A37B2

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

Preview Lab → · Contrast checker → · Palette generator →