#2937B8#2937B8

#2937B8 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.2% C 0.200 H 269.9°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#2937B8
RGB	rgb(41, 55, 184)
HSL	hsl(234, 64%, 44%)
HSV	hsv(234, 78%, 72%)
CMYK	cmyk(77.7%, 70.1%, 0%, 27.8%)
CIE-LAB	lab(31.03, 40.43, -69.04)
CIE-LCH	lch(31.03, 80.01, 300.36°)
OKLab	oklab(42.2% -0.0004 -0.1999)
OKLCH	oklch(42.2% 0.2 269.9)
XYZ	xyz(10.9294, 6.6633, 46.0482)
Luminance	0.0666 (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

#2937B8 #B8AA29

analogous

#297FB8 #2937B8 #6329B8

triadic

#2937B8 #B82937 #37B829

tetradic

#2937B8 #B8297F #B8AA29 #29B863

square

#2937B8 #B8297F #B8AA29 #29B863

split-complementary

#2937B8 #B86329 #7FB829

monochromatic

#131954 #1E2886 #2937B8 #4856D6 #7A84E1

Accessibility & contrast

On white

9.00

#2937B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#2937B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2937B8

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2937B8	#FFFFFF	#000000	##FFFFFF
##2937B8	1.00	9.00	2.33	9.00
#FFFFFF	9.00	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BC

Deuteranopia (green-blind)

#0042B6

Tritanopia (blue-blind)

#005B73

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2937b8;
/* rgb */ color: rgb(41, 55, 184);
/* oklch */ color: oklch(42.2% 0.200 269.9);

Tailwind

colors: {
  custom: {
    50: '#7b6ecf',
    500: '#2937b8',
    950: '#000000',
  },
}

SCSS

$custom: #2937b8;
$custom-light: #7b6ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#2937b8",
  "rgb": {
    "r": 41,
    "g": 55,
    "b": 184
  },
  "hsl": {
    "h": 234.126,
    "s": 63.556,
    "l": 44.118
  },
  "oklch": {
    "l": 0.42196,
    "c": 0.19991,
    "h": 269.9
  },
  "luminance": 0.06664
}

Semantic roles & 50–950 ramp

primary

#2937B8

secondary

#C9C173

accent

#D641E7

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2937B8

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

Preview Lab → · Contrast checker → · Palette generator →