#2733B0#2733B0

#2733B0 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.6% C 0.195 H 270.1°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#2733B0
RGB	rgb(39, 51, 176)
HSL	hsl(235, 64%, 42%)
HSV	hsv(235, 78%, 69%)
CMYK	cmyk(77.8%, 71%, 0%, 31%)
CIE-LAB	lab(29.24, 39.88, -67.23)
CIE-LCH	lch(29.24, 78.17, 300.68°)
OKLab	oklab(40.64% 0.0004 -0.1947)
OKLCH	oklch(40.64% 0.195 270.1)
XYZ	xyz(9.8543, 5.9325, 41.6916)
Luminance	0.0593 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2733B0 #B0A427

analogous

#2777B0 #2733B0 #6027B0

triadic

#2733B0 #B02733 #33B027

tetradic

#2733B0 #B02777 #B0A427 #27B060

square

#2733B0 #B02777 #B0A427 #27B060

split-complementary

#2733B0 #B06027 #77B027

monochromatic

#11164C #1C247E #2733B0 #404DD5 #727BE0

Accessibility & contrast

On white

9.60

#2733B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2733B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2733B0

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2733B0	#FFFFFF	#000000	##FFFFFF
##2733B0	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB4

Deuteranopia (green-blind)

#003EAE

Tritanopia (blue-blind)

#00566E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2733b0;
/* rgb */ color: rgb(39, 51, 176);
/* oklch */ color: oklch(40.6% 0.195 270.1);

Tailwind

colors: {
  custom: {
    50: '#796bc9',
    500: '#2733b0',
    950: '#000000',
  },
}

SCSS

$custom: #2733b0;
$custom-light: #796bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2733b0",
  "rgb": {
    "r": 39,
    "g": 51,
    "b": 176
  },
  "hsl": {
    "h": 234.745,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.40642,
    "c": 0.19467,
    "h": 270.1
  },
  "luminance": 0.05934
}

Semantic roles & 50–950 ramp

primary

#2733B0

secondary

#C7BF6C

accent

#D841E7

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2733B0

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

Preview Lab → · Contrast checker → · Palette generator →