#2D37A8#2D37A8

#2D37A8 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.8% C 0.178 H 271.7°. Best body text is #FFFFFF at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#2D37A8
RGB	rgb(45, 55, 168)
HSL	hsl(235, 58%, 42%)
HSV	hsv(235, 73%, 66%)
CMYK	cmyk(73.2%, 67.3%, 0%, 34.1%)
CIE-LAB	lab(29.70, 35.15, -61.66)
CIE-LCH	lch(29.70, 70.98, 299.69°)
OKLab	oklab(40.83% 0.0053 -0.1783)
OKLCH	oklch(40.83% 0.178 271.7)
XYZ	xyz(9.5139, 6.1164, 37.7174)
Luminance	0.0612 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.71

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D37A8 #A89E2D

analogous

#2D75A8 #2D37A8 #612DA8

triadic

#2D37A8 #A82D37 #37A82D

tetradic

#2D37A8 #A82D75 #A89E2D #2DA861

square

#2D37A8 #A82D75 #A89E2D #2DA861

split-complementary

#2D37A8 #A8612D #75A82D

monochromatic

#131747 #202778 #2D37A8 #4550CD #757DDA

Accessibility & contrast

On white

9.44

#2D37A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#2D37A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D37A8

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D37A8	#FFFFFF	#000000	##FFFFFF
##2D37A8	1.00	9.44	2.22	9.44
#FFFFFF	9.44	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CAC

Deuteranopia (green-blind)

#0040A6

Tritanopia (blue-blind)

#00556A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2d37a8;
/* rgb */ color: rgb(45, 55, 168);
/* oklch */ color: oklch(40.8% 0.178 271.7);

Tailwind

colors: {
  custom: {
    50: '#786ec3',
    500: '#2d37a8',
    950: '#000000',
  },
}

SCSS

$custom: #2d37a8;
$custom-light: #786ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#2d37a8",
  "rgb": {
    "r": 45,
    "g": 55,
    "b": 168
  },
  "hsl": {
    "h": 235.122,
    "s": 57.746,
    "l": 41.765
  },
  "oklch": {
    "l": 0.40829,
    "c": 0.17836,
    "h": 271.7
  },
  "luminance": 0.06117
}

Semantic roles & 50–950 ramp

primary

#2D37A8

secondary

#C2BB6F

accent

#D447E1

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2D37A8

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

Preview Lab → · Contrast checker → · Palette generator →