#2B37AE#2B37AE

#2B37AE is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.3% C 0.187 H 270.8°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#2B37AE
RGB	rgb(43, 55, 174)
HSL	hsl(235, 60%, 43%)
HSV	hsv(235, 75%, 68%)
CMYK	cmyk(75.3%, 68.4%, 0%, 31.8%)
CIE-LAB	lab(30.16, 37.08, -64.52)
CIE-LCH	lch(30.16, 74.41, 299.89°)
OKLab	oklab(41.3% 0.0026 -0.1867)
OKLCH	oklch(41.3% 0.187 270.8)
XYZ	xyz(9.9998, 6.3009, 40.7254)
Luminance	0.0630 (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

#2B37AE #AEA22B

analogous

#2B78AE #2B37AE #612BAE

triadic

#2B37AE #AE2B37 #37AE2B

tetradic

#2B37AE #AE2B78 #AEA22B #2BAE61

square

#2B37AE #AE2B78 #AEA22B #2BAE61

split-complementary

#2B37AE #AE612B #78AE2B

monochromatic

#13184C #1F277D #2B37AE #4552D1 #7680DD

Accessibility & contrast

On white

9.29

#2B37AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#2B37AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B37AE

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B37AE	#FFFFFF	#000000	##FFFFFF
##2B37AE	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB2

Deuteranopia (green-blind)

#0041AC

Tritanopia (blue-blind)

#00576E

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2b37ae;
/* rgb */ color: rgb(43, 55, 174);
/* oklch */ color: oklch(41.3% 0.187 270.8);

Tailwind

colors: {
  custom: {
    50: '#796ec7',
    500: '#2b37ae',
    950: '#000000',
  },
}

SCSS

$custom: #2b37ae;
$custom-light: #796ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#2b37ae",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 174
  },
  "hsl": {
    "h": 234.504,
    "s": 60.369,
    "l": 42.549
  },
  "oklch": {
    "l": 0.41302,
    "c": 0.18668,
    "h": 270.8
  },
  "luminance": 0.06302
}

Semantic roles & 50–950 ramp

primary

#2B37AE

secondary

#C5BD70

accent

#D544E4

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2B37AE

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

Preview Lab → · Contrast checker → · Palette generator →