#2D37A7#2D37A7

#2D37A7 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.7% C 0.177 H 271.8°. Best body text is #FFFFFF at 9.48:1 contrast (WCAG AA passes).

Color values

HEX	#2D37A7
RGB	rgb(45, 55, 167)
HSL	hsl(235, 58%, 42%)
HSV	hsv(235, 73%, 65%)
CMYK	cmyk(73.1%, 67.1%, 0%, 34.5%)
CIE-LAB	lab(29.61, 34.80, -61.21)
CIE-LCH	lch(29.61, 70.41, 299.62°)
OKLab	oklab(40.73% 0.0054 -0.177)
OKLCH	oklch(40.73% 0.177 271.8)
XYZ	xyz(9.4211, 6.0793, 37.2286)
Luminance	0.0608 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.82

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D37A7 #A79D2D

analogous

#2D74A7 #2D37A7 #602DA7

triadic

#2D37A7 #A72D37 #37A72D

tetradic

#2D37A7 #A72D74 #A79D2D #2DA760

square

#2D37A7 #A72D74 #A79D2D #2DA760

split-complementary

#2D37A7 #A7602D #74A72D

monochromatic

#131747 #202777 #2D37A7 #4450CD #757DDA

Accessibility & contrast

On white

9.48

#2D37A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#2D37A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D37A7

9.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D37A7	#FFFFFF	#000000	##FFFFFF
##2D37A7	1.00	9.48	2.22	9.48
#FFFFFF	9.48	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CAA

Deuteranopia (green-blind)

#0040A5

Tritanopia (blue-blind)

#00556A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2d37a7;
/* rgb */ color: rgb(45, 55, 167);
/* oklch */ color: oklch(40.7% 0.177 271.8);

Tailwind

colors: {
  custom: {
    50: '#786ec2',
    500: '#2d37a7',
    950: '#000000',
  },
}

SCSS

$custom: #2d37a7;
$custom-light: #786ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#2d37a7",
  "rgb": {
    "r": 45,
    "g": 55,
    "b": 167
  },
  "hsl": {
    "h": 235.082,
    "s": 57.547,
    "l": 41.569
  },
  "oklch": {
    "l": 0.40734,
    "c": 0.17704,
    "h": 271.8
  },
  "luminance": 0.0608
}

Semantic roles & 50–950 ramp

primary

#2D37A7

secondary

#C1BB6E

accent

#D447E1

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2D37A7

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

Preview Lab → · Contrast checker → · Palette generator →