#2A37B0#2A37B0

#2A37B0 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.4% C 0.190 H 270.4°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#2A37B0
RGB	rgb(42, 55, 176)
HSL	hsl(234, 61%, 43%)
HSV	hsv(234, 76%, 69%)
CMYK	cmyk(76.1%, 68.8%, 0%, 31%)
CIE-LAB	lab(30.30, 37.69, -65.48)
CIE-LCH	lch(30.30, 75.56, 299.92°)
OKLab	oklab(41.45% 0.0014 -0.1895)
OKLCH	oklch(41.45% 0.19 270.4)
XYZ	xyz(10.1548, 6.3581, 41.7579)
Luminance	0.0636 (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

#2A37B0 #B0A32A

analogous

#2A7AB0 #2A37B0 #602AB0

triadic

#2A37B0 #B02A37 #37B02A

tetradic

#2A37B0 #B02A7A #B0A32A #2AB060

square

#2A37B0 #B02A7A #B0A32A #2AB060

split-complementary

#2A37B0 #B0602A #7AB02A

monochromatic

#12184D #1E287F #2A37B0 #4552D3 #7680DE

Accessibility & contrast

On white

9.24

#2A37B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#2A37B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A37B0

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A37B0	#FFFFFF	#000000	##FFFFFF
##2A37B0	1.00	9.24	2.27	9.24
#FFFFFF	9.24	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB4

Deuteranopia (green-blind)

#0041AE

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2a37b0;
/* rgb */ color: rgb(42, 55, 176);
/* oklch */ color: oklch(41.4% 0.190 270.4);

Tailwind

colors: {
  custom: {
    50: '#796ec9',
    500: '#2a37b0',
    950: '#000000',
  },
}

SCSS

$custom: #2a37b0;
$custom-light: #796ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#2a37b0",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 176
  },
  "hsl": {
    "h": 234.179,
    "s": 61.468,
    "l": 42.745
  },
  "oklch": {
    "l": 0.41447,
    "c": 0.18952,
    "h": 270.4
  },
  "luminance": 0.06359
}

Semantic roles & 50–950 ramp

primary

#2A37B0

secondary

#C6BE70

accent

#D543E5

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2A37B0

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

Preview Lab → · Contrast checker → · Palette generator →