#2A37A6#2A37A6

#2A37A6 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.5% C 0.177 H 270.7°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#2A37A6
RGB	rgb(42, 55, 166)
HSL	hsl(234, 60%, 41%)
HSV	hsv(234, 75%, 65%)
CMYK	cmyk(74.7%, 66.9%, 0%, 34.9%)
CIE-LAB	lab(29.35, 34.09, -61.04)
CIE-LCH	lch(29.35, 69.92, 299.19°)
OKLab	oklab(40.47% 0.0023 -0.1765)
OKLCH	oklch(40.47% 0.177 270.7)
XYZ	xyz(9.2016, 5.9768, 36.7377)
Luminance	0.0598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A37A6 #A6992A

analogous

#2A75A6 #2A37A6 #5B2AA6

triadic

#2A37A6 #A62A37 #37A62A

tetradic

#2A37A6 #A62A75 #A6992A #2AA65B

square

#2A37A6 #A62A75 #A6992A #2AA65B

split-complementary

#2A37A6 #A65B2A #75A62A

monochromatic

#111744 #1E2775 #2A37A6 #3F4ECE #707BDB

Accessibility & contrast

On white

9.56

#2A37A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#2A37A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A37A6

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A37A6	#FFFFFF	#000000	##FFFFFF
##2A37A6	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA9

Deuteranopia (green-blind)

#003FA4

Tritanopia (blue-blind)

#005569

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2a37a6;
/* rgb */ color: rgb(42, 55, 166);
/* oklch */ color: oklch(40.5% 0.177 270.7);

Tailwind

colors: {
  custom: {
    50: '#776ec1',
    500: '#2a37a6',
    950: '#000000',
  },
}

SCSS

$custom: #2a37a6;
$custom-light: #776ec1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a37a6",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 166
  },
  "hsl": {
    "h": 233.71,
    "s": 59.615,
    "l": 40.784
  },
  "oklch": {
    "l": 0.40473,
    "c": 0.17653,
    "h": 270.7
  },
  "luminance": 0.05978
}

Semantic roles & 50–950 ramp

primary

#2A37A6

secondary

#C2B96A

accent

#D245E3

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2A37A6

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

Preview Lab → · Contrast checker → · Palette generator →