#2937B0#2937B0

#2937B0 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.4% C 0.190 H 270.1°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#2937B0
RGB	rgb(41, 55, 176)
HSL	hsl(234, 62%, 43%)
HSV	hsv(234, 77%, 69%)
CMYK	cmyk(76.7%, 68.8%, 0%, 31%)
CIE-LAB	lab(30.25, 37.59, -65.57)
CIE-LCH	lch(30.25, 75.58, 299.83°)
OKLab	oklab(41.4% 0.0004 -0.1898)
OKLCH	oklch(41.4% 0.19 270.1)
XYZ	xyz(10.1144, 6.3373, 41.7560)
Luminance	0.0634 (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

#2937B0 #B0A229

analogous

#297AB0 #2937B0 #5F29B0

triadic

#2937B0 #B02937 #37B029

tetradic

#2937B0 #B0297A #B0A229 #29B05F

square

#2937B0 #B0297A #B0A229 #29B05F

split-complementary

#2937B0 #B05F29 #7AB029

monochromatic

#12184D #1D277E #2937B0 #4352D3 #7580DF

Accessibility & contrast

On white

9.26

#2937B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#2937B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2937B0

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2937B0	#FFFFFF	#000000	##FFFFFF
##2937B0	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB4

Deuteranopia (green-blind)

#0041AE

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2937b0;
/* rgb */ color: rgb(41, 55, 176);
/* oklch */ color: oklch(41.4% 0.190 270.1);

Tailwind

colors: {
  custom: {
    50: '#796ec9',
    500: '#2937b0',
    950: '#000000',
  },
}

SCSS

$custom: #2937b0;
$custom-light: #796ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#2937b0",
  "rgb": {
    "r": 41,
    "g": 55,
    "b": 176
  },
  "hsl": {
    "h": 233.778,
    "s": 62.212,
    "l": 42.549
  },
  "oklch": {
    "l": 0.41397,
    "c": 0.18978,
    "h": 270.1
  },
  "luminance": 0.06338
}

Semantic roles & 50–950 ramp

primary

#2937B0

secondary

#C6BD6F

accent

#D443E5

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2937B0

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

Preview Lab → · Contrast checker → · Palette generator →