#2737A3#2737A3

#2737A3 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.0% C 0.173 H 269.8°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#2737A3
RGB	rgb(39, 55, 163)
HSL	hsl(232, 61%, 40%)
HSV	hsv(232, 76%, 64%)
CMYK	cmyk(76.1%, 66.3%, 0%, 36.1%)
CIE-LAB	lab(28.92, 32.67, -59.94)
CIE-LCH	lch(28.92, 68.27, 298.59°)
OKLab	oklab(40.03% -0.0005 -0.1734)
OKLCH	oklch(40.03% 0.173 269.8)
XYZ	xyz(8.8115, 5.8071, 35.2997)
Luminance	0.0581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2737A3 #A39327

analogous

#2775A3 #2737A3 #5527A3

triadic

#2737A3 #A32737 #37A327

tetradic

#2737A3 #A32775 #A39327 #27A355

square

#2737A3 #A32775 #A39327 #27A355

split-complementary

#2737A3 #A35527 #75A327

monochromatic

#0F1640 #1B2672 #2737A3 #384BCF #6978DB

Accessibility & contrast

On white

9.72

#2737A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2737A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2737A3

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2737A3	#FFFFFF	#000000	##FFFFFF
##2737A3	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA6

Deuteranopia (green-blind)

#003EA1

Tritanopia (blue-blind)

#005468

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2737a3;
/* rgb */ color: rgb(39, 55, 163);
/* oklch */ color: oklch(40.0% 0.173 269.8);

Tailwind

colors: {
  custom: {
    50: '#756ebf',
    500: '#2737a3',
    950: '#000000',
  },
}

SCSS

$custom: #2737a3;
$custom-light: #756ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#2737a3",
  "rgb": {
    "r": 39,
    "g": 55,
    "b": 163
  },
  "hsl": {
    "h": 232.258,
    "s": 61.386,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40029,
    "c": 0.17339,
    "h": 269.8
  },
  "luminance": 0.05808
}

Semantic roles & 50–950 ramp

primary

#2737A3

secondary

#C1B564

accent

#D043E4

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2737A3

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

Preview Lab → · Contrast checker → · Palette generator →