#2737AD#2737AD

#2737AD is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.0% C 0.186 H 269.6°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#2737AD
RGB	rgb(39, 55, 173)
HSL	hsl(233, 63%, 42%)
HSV	hsv(233, 77%, 68%)
CMYK	cmyk(77.5%, 68.2%, 0%, 32.2%)
CIE-LAB	lab(29.86, 36.32, -64.41)
CIE-LCH	lch(29.86, 73.95, 299.42°)
OKLab	oklab(41% -0.0013 -0.1864)
OKLCH	oklch(41% 0.186 269.6)
XYZ	xyz(9.7431, 6.1798, 40.2064)
Luminance	0.0618 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.66

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2737AD #AD9D27

analogous

#277AAD #2737AD #5A27AD

triadic

#2737AD #AD2737 #37AD27

tetradic

#2737AD #AD277A #AD9D27 #27AD5A

square

#2737AD #AD277A #AD9D27 #27AD5A

split-complementary

#2737AD #AD5A27 #7AAD27

monochromatic

#101749 #1C277B #2737AD #3E50D3 #707DDF

Accessibility & contrast

On white

9.39

#2737AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#2737AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2737AD

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2737AD	#FFFFFF	#000000	##FFFFFF
##2737AD	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB1

Deuteranopia (green-blind)

#0040AB

Tritanopia (blue-blind)

#00576D

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2737ad;
/* rgb */ color: rgb(39, 55, 173);
/* oklch */ color: oklch(41.0% 0.186 269.6);

Tailwind

colors: {
  custom: {
    50: '#786ec7',
    500: '#2737ad',
    950: '#000000',
  },
}

SCSS

$custom: #2737ad;
$custom-light: #786ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#2737ad",
  "rgb": {
    "r": 39,
    "g": 55,
    "b": 173
  },
  "hsl": {
    "h": 232.836,
    "s": 63.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.41002,
    "c": 0.18645,
    "h": 269.6
  },
  "luminance": 0.06181
}

Semantic roles & 50–950 ramp

primary

#2737AD

secondary

#C6BB6A

accent

#D342E6

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2737AD

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

Preview Lab → · Contrast checker → · Palette generator →