#2937B4#2937B4

#2937B4 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.8% C 0.195 H 270.0°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#2937B4
RGB	rgb(41, 55, 180)
HSL	hsl(234, 63%, 43%)
HSV	hsv(234, 77%, 71%)
CMYK	cmyk(77.2%, 69.4%, 0%, 29.4%)
CIE-LAB	lab(30.64, 39.02, -67.31)
CIE-LCH	lch(30.64, 77.81, 300.10°)
OKLab	oklab(41.79% 0 -0.1949)
OKLCH	oklch(41.79% 0.195 270)
XYZ	xyz(10.5160, 6.4979, 43.8712)
Luminance	0.0650 (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

#2937B4 #B4A629

analogous

#297CB4 #2937B4 #6029B4

triadic

#2937B4 #B42937 #37B429

tetradic

#2937B4 #B4297C #B4A629 #29B460

square

#2937B4 #B4297C #B4A629 #29B460

split-complementary

#2937B4 #B46029 #7CB429

monochromatic

#121950 #1E2882 #2937B4 #4554D5 #7782E0

Accessibility & contrast

On white

9.13

#2937B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#2937B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2937B4

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2937B4	#FFFFFF	#000000	##FFFFFF
##2937B4	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB8

Deuteranopia (green-blind)

#0041B2

Tritanopia (blue-blind)

#005A71

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2937b4;
/* rgb */ color: rgb(41, 55, 180);
/* oklch */ color: oklch(41.8% 0.195 270.0);

Tailwind

colors: {
  custom: {
    50: '#7a6ecc',
    500: '#2937b4',
    950: '#000000',
  },
}

SCSS

$custom: #2937b4;
$custom-light: #7a6ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#2937b4",
  "rgb": {
    "r": 41,
    "g": 55,
    "b": 180
  },
  "hsl": {
    "h": 233.957,
    "s": 62.896,
    "l": 43.333
  },
  "oklch": {
    "l": 0.41794,
    "c": 0.19487,
    "h": 270
  },
  "luminance": 0.06499
}

Semantic roles & 50–950 ramp

primary

#2937B4

secondary

#C8BF71

accent

#D542E6

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2937B4

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

Preview Lab → · Contrast checker → · Palette generator →