#2A37A9#2A37A9

#2A37A9 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.8% C 0.180 H 270.7°. Best body text is #FFFFFF at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#2A37A9
RGB	rgb(42, 55, 169)
HSL	hsl(234, 60%, 41%)
HSV	hsv(234, 75%, 66%)
CMYK	cmyk(75.1%, 67.5%, 0%, 33.7%)
CIE-LAB	lab(29.63, 35.18, -62.38)
CIE-LCH	lch(29.63, 71.62, 299.42°)
OKLab	oklab(40.76% 0.0021 -0.1805)
OKLCH	oklch(40.76% 0.18 270.7)
XYZ	xyz(9.4800, 6.0882, 38.2039)
Luminance	0.0609 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A37A9 #A99C2A

analogous

#2A77A9 #2A37A9 #5D2AA9

triadic

#2A37A9 #A92A37 #37A92A

tetradic

#2A37A9 #A92A77 #A99C2A #2AA95D

square

#2A37A9 #A92A77 #A99C2A #2AA95D

split-complementary

#2A37A9 #A95D2A #77A92A

monochromatic

#121747 #1E2778 #2A37A9 #414FD0 #727CDC

Accessibility & contrast

On white

9.47

#2A37A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#2A37A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A37A9

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A37A9	#FFFFFF	#000000	##FFFFFF
##2A37A9	1.00	9.47	2.22	9.47
#FFFFFF	9.47	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CAD

Deuteranopia (green-blind)

#0040A7

Tritanopia (blue-blind)

#00566B

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2a37a9;
/* rgb */ color: rgb(42, 55, 169);
/* oklch */ color: oklch(40.8% 0.180 270.7);

Tailwind

colors: {
  custom: {
    50: '#786ec4',
    500: '#2a37a9',
    950: '#000000',
  },
}

SCSS

$custom: #2a37a9;
$custom-light: #786ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#2a37a9",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 169
  },
  "hsl": {
    "h": 233.858,
    "s": 60.19,
    "l": 41.373
  },
  "oklch": {
    "l": 0.40762,
    "c": 0.18047,
    "h": 270.7
  },
  "luminance": 0.06089
}

Semantic roles & 50–950 ramp

primary

#2A37A9

secondary

#C3BA6C

accent

#D344E3

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2A37A9

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

Preview Lab → · Contrast checker → · Palette generator →