#2D37B8#2D37B8

#2D37B8 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.4% C 0.199 H 271.1°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#2D37B8
RGB	rgb(45, 55, 184)
HSL	hsl(236, 61%, 45%)
HSV	hsv(236, 76%, 72%)
CMYK	cmyk(75.5%, 70.1%, 0%, 27.8%)
CIE-LAB	lab(31.23, 40.80, -68.70)
CIE-LCH	lch(31.23, 79.90, 300.70°)
OKLab	oklab(42.4% 0.0037 -0.1988)
OKLCH	oklch(42.4% 0.199 271.1)
XYZ	xyz(11.0972, 6.7498, 46.0561)
Luminance	0.0675 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D37B8 #B8AE2D

analogous

#2D7DB8 #2D37B8 #682DB8

triadic

#2D37B8 #B82D37 #37B82D

tetradic

#2D37B8 #B82D7D #B8AE2D #2DB868

square

#2D37B8 #B82D7D #B8AE2D #2DB868

split-complementary

#2D37B8 #B8682D #7DB82D

monochromatic

#151A56 #212887 #2D37B8 #4E58D4 #8086E0

Accessibility & contrast

On white

8.94

#2D37B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#2D37B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D37B8

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D37B8	#FFFFFF	#000000	##FFFFFF
##2D37B8	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BC

Deuteranopia (green-blind)

#0043B6

Tritanopia (blue-blind)

#005B73

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2d37b8;
/* rgb */ color: rgb(45, 55, 184);
/* oklch */ color: oklch(42.4% 0.199 271.1);

Tailwind

colors: {
  custom: {
    50: '#7c6ecf',
    500: '#2d37b8',
    950: '#000000',
  },
}

SCSS

$custom: #2d37b8;
$custom-light: #7c6ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#2d37b8",
  "rgb": {
    "r": 45,
    "g": 55,
    "b": 184
  },
  "hsl": {
    "h": 235.683,
    "s": 60.699,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42397,
    "c": 0.19887,
    "h": 271.1
  },
  "luminance": 0.06751
}

Semantic roles & 50–950 ramp

primary

#2D37B8

secondary

#C9C378

accent

#D844E4

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2D37B8

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

Preview Lab → · Contrast checker → · Palette generator →