#2737AA#2737AA

#2737AA is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.7% C 0.183 H 269.7°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#2737AA
RGB	rgb(39, 55, 170)
HSL	hsl(233, 63%, 41%)
HSV	hsv(233, 77%, 67%)
CMYK	cmyk(77.1%, 67.6%, 0%, 33.3%)
CIE-LAB	lab(29.58, 35.24, -63.09)
CIE-LCH	lch(29.58, 72.26, 299.19°)
OKLab	oklab(40.71% -0.001 -0.1826)
OKLCH	oklch(40.71% 0.183 269.7)
XYZ	xyz(9.4561, 6.0650, 38.6947)
Luminance	0.0607 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.96

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2737AA #AA9A27

analogous

#2778AA #2737AA #5827AA

triadic

#2737AA #AA2737 #37AA27

tetradic

#2737AA #AA2778 #AA9A27 #27AA58

square

#2737AA #AA2778 #AA9A27 #27AA58

split-complementary

#2737AA #AA5827 #78AA27

monochromatic

#101746 #1C2778 #2737AA #3C4ED2 #6E7BDE

Accessibility & contrast

On white

9.49

#2737AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#2737AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2737AA

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2737AA	#FFFFFF	#000000	##FFFFFF
##2737AA	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CAE

Deuteranopia (green-blind)

#003FA8

Tritanopia (blue-blind)

#00566C

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2737aa;
/* rgb */ color: rgb(39, 55, 170);
/* oklch */ color: oklch(40.7% 0.183 269.7);

Tailwind

colors: {
  custom: {
    50: '#776ec4',
    500: '#2737aa',
    950: '#000000',
  },
}

SCSS

$custom: #2737aa;
$custom-light: #776ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#2737aa",
  "rgb": {
    "r": 39,
    "g": 55,
    "b": 170
  },
  "hsl": {
    "h": 232.672,
    "s": 62.679,
    "l": 40.98
  },
  "oklch": {
    "l": 0.40707,
    "c": 0.18257,
    "h": 269.7
  },
  "luminance": 0.06066
}

Semantic roles & 50–950 ramp

primary

#2737AA

secondary

#C4B969

accent

#D242E6

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2737AA

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

Preview Lab → · Contrast checker → · Palette generator →