#2733A1#2733A1

#2733A1 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.1% C 0.175 H 270.7°. Best body text is #FFFFFF at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#2733A1
RGB	rgb(39, 51, 161)
HSL	hsl(234, 61%, 39%)
HSV	hsv(234, 76%, 63%)
CMYK	cmyk(75.8%, 68.3%, 0%, 36.9%)
CIE-LAB	lab(27.77, 34.52, -60.63)
CIE-LCH	lch(27.77, 69.76, 299.65°)
OKLab	oklab(39.13% 0.002 -0.1754)
OKLCH	oklch(39.13% 0.175 270.7)
XYZ	xyz(8.4514, 5.3713, 34.3027)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2733A1 #A19527

analogous

#2770A1 #2733A1 #5827A1

triadic

#2733A1 #A12733 #33A127

tetradic

#2733A1 #A12770 #A19527 #27A158

square

#2733A1 #A12770 #A19527 #27A158

split-complementary

#2733A1 #A15827 #70A127

monochromatic

#0F143E #1B2370 #2733A1 #3746CE #6873DA

Accessibility & contrast

On white

10.12

#2733A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#2733A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2733A1

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2733A1	#FFFFFF	#000000	##FFFFFF
##2733A1	1.00	10.12	2.07	10.12
#FFFFFF	10.12	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A4

Deuteranopia (green-blind)

#003C9F

Tritanopia (blue-blind)

#005165

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2733a1;
/* rgb */ color: rgb(39, 51, 161);
/* oklch */ color: oklch(39.1% 0.175 270.7);

Tailwind

colors: {
  custom: {
    50: '#756bbe',
    500: '#2733a1',
    950: '#000000',
  },
}

SCSS

$custom: #2733a1;
$custom-light: #756bbe;
$custom-dark: #000000;

JSON

{
  "hex": "#2733a1",
  "rgb": {
    "r": 39,
    "g": 51,
    "b": 161
  },
  "hsl": {
    "h": 234.098,
    "s": 61,
    "l": 39.216
  },
  "oklch": {
    "l": 0.39131,
    "c": 0.17541,
    "h": 270.7
  },
  "luminance": 0.05372
}

Semantic roles & 50–950 ramp

primary

#2733A1

secondary

#C0B763

accent

#D444E4

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2733A1

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

Preview Lab → · Contrast checker → · Palette generator →