#2A37B4#2A37B4

#2A37B4 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.8% C 0.195 H 270.3°. Best body text is #FFFFFF at 9.11:1 contrast (WCAG AA passes).

Color values

HEX	#2A37B4
RGB	rgb(42, 55, 180)
HSL	hsl(234, 62%, 44%)
HSV	hsv(234, 77%, 71%)
CMYK	cmyk(76.7%, 69.4%, 0%, 29.4%)
CIE-LAB	lab(30.69, 39.11, -67.23)
CIE-LCH	lch(30.69, 77.78, 300.19°)
OKLab	oklab(41.84% 0.001 -0.1946)
OKLCH	oklch(41.84% 0.195 270.3)
XYZ	xyz(10.5564, 6.5187, 43.8731)
Luminance	0.0652 (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

#2A37B4 #B4A72A

analogous

#2A7CB4 #2A37B4 #622AB4

triadic

#2A37B4 #B42A37 #37B42A

tetradic

#2A37B4 #B42A7C #B4A72A #2AB462

square

#2A37B4 #B42A7C #B4A72A #2AB462

split-complementary

#2A37B4 #B4622A #7CB42A

monochromatic

#131951 #1E2882 #2A37B4 #4754D4 #7982E0

Accessibility & contrast

On white

9.11

#2A37B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#2A37B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A37B4

9.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A37B4	#FFFFFF	#000000	##FFFFFF
##2A37B4	1.00	9.11	2.30	9.11
#FFFFFF	9.11	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB8

Deuteranopia (green-blind)

#0042B2

Tritanopia (blue-blind)

#005A71

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2a37b4;
/* rgb */ color: rgb(42, 55, 180);
/* oklch */ color: oklch(41.8% 0.195 270.3);

Tailwind

colors: {
  custom: {
    50: '#7a6ecc',
    500: '#2a37b4',
    950: '#000000',
  },
}

SCSS

$custom: #2a37b4;
$custom-light: #7a6ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#2a37b4",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 180
  },
  "hsl": {
    "h": 234.348,
    "s": 62.162,
    "l": 43.529
  },
  "oklch": {
    "l": 0.41844,
    "c": 0.19461,
    "h": 270.3
  },
  "luminance": 0.0652
}

Semantic roles & 50–950 ramp

primary

#2A37B4

secondary

#C8C072

accent

#D643E5

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2A37B4

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

Preview Lab → · Contrast checker → · Palette generator →