#2A37B7#2A37B7

#2A37B7 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 42.1% C 0.198 H 270.2°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#2A37B7
RGB	rgb(42, 55, 183)
HSL	hsl(234, 63%, 44%)
HSV	hsv(234, 77%, 72%)
CMYK	cmyk(77%, 69.9%, 0%, 28.2%)
CIE-LAB	lab(30.98, 40.17, -68.53)
CIE-LCH	lch(30.98, 79.43, 300.38°)
OKLab	oklab(42.14% 0.0007 -0.1984)
OKLCH	oklch(42.14% 0.198 270.2)
XYZ	xyz(10.8654, 6.6423, 45.5000)
Luminance	0.0664 (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

#2A37B7 #B7AA2A

analogous

#2A7EB7 #2A37B7 #642AB7

triadic

#2A37B7 #B72A37 #37B72A

tetradic

#2A37B7 #B72A7E #B7AA2A #2AB764

square

#2A37B7 #B72A7E #B7AA2A #2AB764

split-complementary

#2A37B7 #B7642A #7EB72A

monochromatic

#131953 #1F2885 #2A37B7 #4956D5 #7B84E1

Accessibility & contrast

On white

9.02

#2A37B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#2A37B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A37B7

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A37B7	#FFFFFF	#000000	##FFFFFF
##2A37B7	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BB

Deuteranopia (green-blind)

#0042B5

Tritanopia (blue-blind)

#005B73

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2a37b7;
/* rgb */ color: rgb(42, 55, 183);
/* oklch */ color: oklch(42.1% 0.198 270.2);

Tailwind

colors: {
  custom: {
    50: '#7b6ece',
    500: '#2a37b7',
    950: '#000000',
  },
}

SCSS

$custom: #2a37b7;
$custom-light: #7b6ece;
$custom-dark: #000000;

JSON

{
  "hex": "#2a37b7",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 183
  },
  "hsl": {
    "h": 234.468,
    "s": 62.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.42144,
    "c": 0.1984,
    "h": 270.2
  },
  "luminance": 0.06644
}

Semantic roles & 50–950 ramp

primary

#2A37B7

secondary

#C9C174

accent

#D742E6

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2A37B7

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

Preview Lab → · Contrast checker → · Palette generator →