#2937AB#2937AB

#2937AB is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.9% C 0.183 H 270.3°. Best body text is #FFFFFF at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#2937AB
RGB	rgb(41, 55, 171)
HSL	hsl(234, 61%, 42%)
HSV	hsv(234, 76%, 67%)
CMYK	cmyk(76%, 67.8%, 0%, 32.9%)
CIE-LAB	lab(29.77, 35.80, -63.36)
CIE-LCH	lch(29.77, 72.78, 299.47°)
OKLab	oklab(40.91% 0.0009 -0.1833)
OKLCH	oklch(40.91% 0.183 270.3)
XYZ	xyz(9.6288, 6.1430, 39.1984)
Luminance	0.0614 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.71

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2937AB #AB9D29

analogous

#2978AB #2937AB #5C29AB

triadic

#2937AB #AB2937 #37AB29

tetradic

#2937AB #AB2978 #AB9D29 #29AB5C

square

#2937AB #AB2978 #AB9D29 #29AB5C

split-complementary

#2937AB #AB5C29 #78AB29

monochromatic

#111748 #1D277A #2937AB #4050D1 #717DDD

Accessibility & contrast

On white

9.42

#2937AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#2937AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2937AB

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2937AB	#FFFFFF	#000000	##FFFFFF
##2937AB	1.00	9.42	2.23	9.42
#FFFFFF	9.42	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CAF

Deuteranopia (green-blind)

#0040A9

Tritanopia (blue-blind)

#00566C

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2937ab;
/* rgb */ color: rgb(41, 55, 171);
/* oklch */ color: oklch(40.9% 0.183 270.3);

Tailwind

colors: {
  custom: {
    50: '#786ec5',
    500: '#2937ab',
    950: '#000000',
  },
}

SCSS

$custom: #2937ab;
$custom-light: #786ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#2937ab",
  "rgb": {
    "r": 41,
    "g": 55,
    "b": 171
  },
  "hsl": {
    "h": 233.538,
    "s": 61.321,
    "l": 41.569
  },
  "oklch": {
    "l": 0.40905,
    "c": 0.18334,
    "h": 270.3
  },
  "luminance": 0.06144
}

Semantic roles & 50–950 ramp

primary

#2937AB

secondary

#C4BB6C

accent

#D343E4

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2937AB

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

Preview Lab → · Contrast checker → · Palette generator →