#2734B0#2734B0

#2734B0 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.8% C 0.194 H 270.0°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#2734B0
RGB	rgb(39, 52, 176)
HSL	hsl(234, 64%, 42%)
HSV	hsv(234, 78%, 69%)
CMYK	cmyk(77.8%, 70.5%, 0%, 31%)
CIE-LAB	lab(29.46, 39.27, -66.86)
CIE-LCH	lch(29.46, 77.54, 300.43°)
OKLab	oklab(40.8% -0.0001 -0.1936)
OKLCH	oklch(40.8% 0.194 270)
XYZ	xyz(9.8985, 6.0208, 41.7063)
Luminance	0.0602 (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

#2734B0 #B0A327

analogous

#2778B0 #2734B0 #5F27B0

triadic

#2734B0 #B02734 #34B027

tetradic

#2734B0 #B02778 #B0A327 #27B05F

square

#2734B0 #B02778 #B0A327 #27B05F

split-complementary

#2734B0 #B05F27 #78B027

monochromatic

#11164C #1C257E #2734B0 #404ED5 #727CE0

Accessibility & contrast

On white

9.53

#2734B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#2734B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2734B0

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2734B0	#FFFFFF	#000000	##FFFFFF
##2734B0	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB4

Deuteranopia (green-blind)

#003FAE

Tritanopia (blue-blind)

#00576E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2734b0;
/* rgb */ color: rgb(39, 52, 176);
/* oklch */ color: oklch(40.8% 0.194 270.0);

Tailwind

colors: {
  custom: {
    50: '#796cc9',
    500: '#2734b0',
    950: '#000000',
  },
}

SCSS

$custom: #2734b0;
$custom-light: #796cc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2734b0",
  "rgb": {
    "r": 39,
    "g": 52,
    "b": 176
  },
  "hsl": {
    "h": 234.307,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.40803,
    "c": 0.19359,
    "h": 270
  },
  "luminance": 0.06022
}

Semantic roles & 50–950 ramp

primary

#2734B0

secondary

#C7BE6C

accent

#D741E7

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2734B0

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

Preview Lab → · Contrast checker → · Palette generator →