#2737A1#2737A1

#2737A1 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.8% C 0.171 H 269.9°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#2737A1
RGB	rgb(39, 55, 161)
HSL	hsl(232, 61%, 39%)
HSV	hsv(232, 76%, 63%)
CMYK	cmyk(75.8%, 65.8%, 0%, 36.9%)
CIE-LAB	lab(28.74, 31.93, -59.04)
CIE-LCH	lch(28.74, 67.12, 298.41°)
OKLab	oklab(39.84% -0.0004 -0.1707)
OKLCH	oklch(39.84% 0.171 269.9)
XYZ	xyz(8.6337, 5.7360, 34.3634)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2737A1 #A19127

analogous

#2774A1 #2737A1 #5427A1

triadic

#2737A1 #A12737 #37A127

tetradic

#2737A1 #A12774 #A19127 #27A154

square

#2737A1 #A12774 #A19127 #27A154

split-complementary

#2737A1 #A15427 #74A127

monochromatic

#0F153E #1B2670 #2737A1 #374BCE #6877DA

Accessibility & contrast

On white

9.78

#2737A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#2737A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2737A1

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2737A1	#FFFFFF	#000000	##FFFFFF
##2737A1	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA4

Deuteranopia (green-blind)

#003E9F

Tritanopia (blue-blind)

#005367

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2737a1;
/* rgb */ color: rgb(39, 55, 161);
/* oklch */ color: oklch(39.8% 0.171 269.9);

Tailwind

colors: {
  custom: {
    50: '#756ebe',
    500: '#2737a1',
    950: '#000000',
  },
}

SCSS

$custom: #2737a1;
$custom-light: #756ebe;
$custom-dark: #000000;

JSON

{
  "hex": "#2737a1",
  "rgb": {
    "r": 39,
    "g": 55,
    "b": 161
  },
  "hsl": {
    "h": 232.131,
    "s": 61,
    "l": 39.216
  },
  "oklch": {
    "l": 0.39838,
    "c": 0.17073,
    "h": 269.9
  },
  "luminance": 0.05737
}

Semantic roles & 50–950 ramp

primary

#2737A1

secondary

#C0B463

accent

#CF44E4

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2737A1

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

Preview Lab → · Contrast checker → · Palette generator →