#2D37A4#2D37A4

#2D37A4 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.4% C 0.173 H 271.9°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#2D37A4
RGB	rgb(45, 55, 164)
HSL	hsl(235, 57%, 41%)
HSV	hsv(235, 73%, 64%)
CMYK	cmyk(72.6%, 66.5%, 0%, 35.7%)
CIE-LAB	lab(29.34, 33.72, -59.86)
CIE-LCH	lch(29.34, 68.70, 299.39°)
OKLab	oklab(40.45% 0.0057 -0.173)
OKLCH	oklch(40.45% 0.173 271.9)
XYZ	xyz(9.1470, 5.9697, 35.7850)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D37A4 #A49A2D

analogous

#2D72A4 #2D37A4 #5E2DA4

triadic

#2D37A4 #A42D37 #37A42D

tetradic

#2D37A4 #A42D72 #A49A2D #2DA45E

square

#2D37A4 #A42D72 #A49A2D #2DA45E

split-complementary

#2D37A4 #A45E2D #72A42D

monochromatic

#131744 #202774 #2D37A4 #434ECB #737BD9

Accessibility & contrast

On white

9.57

#2D37A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2D37A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D37A4

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D37A4	#FFFFFF	#000000	##FFFFFF
##2D37A4	1.00	9.57	2.19	9.57
#FFFFFF	9.57	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA7

Deuteranopia (green-blind)

#0040A2

Tritanopia (blue-blind)

#005468

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2d37a4;
/* rgb */ color: rgb(45, 55, 164);
/* oklch */ color: oklch(40.4% 0.173 271.9);

Tailwind

colors: {
  custom: {
    50: '#776ec0',
    500: '#2d37a4',
    950: '#000000',
  },
}

SCSS

$custom: #2d37a4;
$custom-light: #776ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#2d37a4",
  "rgb": {
    "r": 45,
    "g": 55,
    "b": 164
  },
  "hsl": {
    "h": 234.958,
    "s": 56.938,
    "l": 40.98
  },
  "oklch": {
    "l": 0.40448,
    "c": 0.17308,
    "h": 271.9
  },
  "luminance": 0.05971
}

Semantic roles & 50–950 ramp

primary

#2D37A4

secondary

#C0B96D

accent

#D348E0

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2D37A4

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

Preview Lab → · Contrast checker → · Palette generator →