#2740A2#2740A2

#2740A2 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.6% C 0.161 H 267.7°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#2740A2
RGB	rgb(39, 64, 162)
HSL	hsl(228, 61%, 39%)
HSV	hsv(228, 76%, 64%)
CMYK	cmyk(75.9%, 60.5%, 0%, 36.5%)
CIE-LAB	lab(31.13, 26.35, -55.73)
CIE-LCH	lch(31.13, 61.65, 295.30°)
OKLab	oklab(41.63% -0.0064 -0.1609)
OKLCH	oklch(41.63% 0.161 267.7)
XYZ	xyz(9.1894, 6.7058, 34.9854)
Luminance	0.0671 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2740A2 #A28927

analogous

#277EA2 #2740A2 #4C27A2

triadic

#2740A2 #A22740 #40A227

tetradic

#2740A2 #A2277E #A28927 #27A24C

square

#2740A2 #A2277E #A28927 #27A24C

split-complementary

#2740A2 #A24C27 #7EA227

monochromatic

#0F193F #1B2D71 #2740A2 #3756CF #6980DB

Accessibility & contrast

On white

8.97

#2740A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#2740A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2740A2

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2740A2	#FFFFFF	#000000	##FFFFFF
##2740A2	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA5

Deuteranopia (green-blind)

#0044A0

Tritanopia (blue-blind)

#00596A

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2740a2;
/* rgb */ color: rgb(39, 64, 162);
/* oklch */ color: oklch(41.6% 0.161 267.7);

Tailwind

colors: {
  custom: {
    50: '#7474be',
    500: '#2740a2',
    950: '#000000',
  },
}

SCSS

$custom: #2740a2;
$custom-light: #7474be;
$custom-dark: #000000;

JSON

{
  "hex": "#2740a2",
  "rgb": {
    "r": 39,
    "g": 64,
    "b": 162
  },
  "hsl": {
    "h": 227.805,
    "s": 61.194,
    "l": 39.412
  },
  "oklch": {
    "l": 0.41631,
    "c": 0.16108,
    "h": 267.7
  },
  "luminance": 0.06707
}

Semantic roles & 50–950 ramp

primary

#2740A2

secondary

#C1AE64

accent

#C443E4

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #2740A2

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

Preview Lab → · Contrast checker → · Palette generator →