#2837AE#2837AE

#2837AE is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.1% C 0.187 H 269.9°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#2837AE
RGB	rgb(40, 55, 174)
HSL	hsl(233, 63%, 42%)
HSV	hsv(233, 77%, 68%)
CMYK	cmyk(77%, 68.4%, 0%, 31.8%)
CIE-LAB	lab(30.01, 36.78, -64.77)
CIE-LCH	lch(30.01, 74.49, 299.59°)
OKLab	oklab(41.15% -0.0004 -0.1875)
OKLCH	oklch(41.15% 0.187 269.9)
XYZ	xyz(9.8786, 6.2384, 40.7197)
Luminance	0.0624 (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

#2837AE #AE9F28

analogous

#287AAE #2837AE #5C28AE

triadic

#2837AE #AE2837 #37AE28

tetradic

#2837AE #AE287A #AE9F28 #28AE5C

square

#2837AE #AE287A #AE9F28 #28AE5C

split-complementary

#2837AE #AE5C28 #7AAE28

monochromatic

#11184A #1D277C #2837AE #4051D3 #727EDF

Accessibility & contrast

On white

9.34

#2837AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#2837AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2837AE

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2837AE	#FFFFFF	#000000	##FFFFFF
##2837AE	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB2

Deuteranopia (green-blind)

#0040AC

Tritanopia (blue-blind)

#00576E

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2837ae;
/* rgb */ color: rgb(40, 55, 174);
/* oklch */ color: oklch(41.1% 0.187 269.9);

Tailwind

colors: {
  custom: {
    50: '#786ec7',
    500: '#2837ae',
    950: '#000000',
  },
}

SCSS

$custom: #2837ae;
$custom-light: #786ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#2837ae",
  "rgb": {
    "r": 40,
    "g": 55,
    "b": 174
  },
  "hsl": {
    "h": 233.284,
    "s": 62.617,
    "l": 41.961
  },
  "oklch": {
    "l": 0.41149,
    "c": 0.18748,
    "h": 269.9
  },
  "luminance": 0.06239
}

Semantic roles & 50–950 ramp

primary

#2837AE

secondary

#C6BC6C

accent

#D342E6

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2837AE

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

Preview Lab → · Contrast checker → · Palette generator →