#2937B1#2937B1

#2937B1 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.5% C 0.191 H 270.1°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#2937B1
RGB	rgb(41, 55, 177)
HSL	hsl(234, 62%, 43%)
HSV	hsv(234, 77%, 69%)
CMYK	cmyk(76.8%, 68.9%, 0%, 30.6%)
CIE-LAB	lab(30.34, 37.95, -66.01)
CIE-LCH	lch(30.34, 76.14, 299.90°)
OKLab	oklab(41.5% 0.0003 -0.1911)
OKLCH	oklch(41.5% 0.191 270.1)
XYZ	xyz(10.2137, 6.3770, 42.2790)
Luminance	0.0638 (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

#2937B1 #B1A329

analogous

#297BB1 #2937B1 #5F29B1

triadic

#2937B1 #B12937 #37B129

tetradic

#2937B1 #B1297B #B1A329 #29B15F

square

#2937B1 #B1297B #B1A329 #29B15F

split-complementary

#2937B1 #B15F29 #7BB129

monochromatic

#12184E #1D287F #2937B1 #4452D4 #7580DF

Accessibility & contrast

On white

9.23

#2937B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#2937B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2937B1

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2937B1	#FFFFFF	#000000	##FFFFFF
##2937B1	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB5

Deuteranopia (green-blind)

#0041AF

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2937b1;
/* rgb */ color: rgb(41, 55, 177);
/* oklch */ color: oklch(41.5% 0.191 270.1);

Tailwind

colors: {
  custom: {
    50: '#796ec9',
    500: '#2937b1',
    950: '#000000',
  },
}

SCSS

$custom: #2937b1;
$custom-light: #796ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#2937b1",
  "rgb": {
    "r": 41,
    "g": 55,
    "b": 177
  },
  "hsl": {
    "h": 233.824,
    "s": 62.385,
    "l": 42.745
  },
  "oklch": {
    "l": 0.41496,
    "c": 0.19106,
    "h": 270.1
  },
  "luminance": 0.06378
}

Semantic roles & 50–950 ramp

primary

#2937B1

secondary

#C7BE6F

accent

#D542E5

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2937B1

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

Preview Lab → · Contrast checker → · Palette generator →