#2737A8#2737A8

#2737A8 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.5% C 0.180 H 269.7°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#2737A8
RGB	rgb(39, 55, 168)
HSL	hsl(233, 62%, 41%)
HSV	hsv(233, 77%, 66%)
CMYK	cmyk(76.8%, 67.3%, 0%, 34.1%)
CIE-LAB	lab(29.39, 34.51, -62.19)
CIE-LCH	lch(29.39, 71.12, 299.02°)
OKLab	oklab(40.51% -0.0009 -0.18)
OKLCH	oklch(40.51% 0.18 269.7)
XYZ	xyz(9.2683, 5.9899, 37.7059)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2737A8 #A89827

analogous

#2777A8 #2737A8 #5727A8

triadic

#2737A8 #A82737 #37A827

tetradic

#2737A8 #A82777 #A89827 #27A857

square

#2737A8 #A82777 #A89827 #27A857

split-complementary

#2737A8 #A85727 #77A827

monochromatic

#101645 #1B2776 #2737A8 #3B4DD1 #6C7ADD

Accessibility & contrast

On white

9.55

#2737A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#2737A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2737A8

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2737A8	#FFFFFF	#000000	##FFFFFF
##2737A8	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAC

Deuteranopia (green-blind)

#003FA6

Tritanopia (blue-blind)

#00556A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2737a8;
/* rgb */ color: rgb(39, 55, 168);
/* oklch */ color: oklch(40.5% 0.180 269.7);

Tailwind

colors: {
  custom: {
    50: '#766ec3',
    500: '#2737a8',
    950: '#000000',
  },
}

SCSS

$custom: #2737a8;
$custom-light: #766ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#2737a8",
  "rgb": {
    "r": 39,
    "g": 55,
    "b": 168
  },
  "hsl": {
    "h": 232.558,
    "s": 62.319,
    "l": 40.588
  },
  "oklch": {
    "l": 0.40512,
    "c": 0.17997,
    "h": 269.7
  },
  "luminance": 0.05991
}

Semantic roles & 50–950 ramp

primary

#2737A8

secondary

#C3B867

accent

#D142E5

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2737A8

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

Preview Lab → · Contrast checker → · Palette generator →