#273EAA#273EAA

#273EAA is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.0% C 0.174 H 268.3°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#273EAA
RGB	rgb(39, 62, 170)
HSL	hsl(229, 63%, 41%)
HSV	hsv(229, 77%, 67%)
CMYK	cmyk(77.1%, 63.5%, 0%, 33.3%)
CIE-LAB	lab(31.30, 30.70, -60.27)
CIE-LCH	lch(31.30, 67.63, 296.99°)
OKLab	oklab(41.97% -0.0052 -0.1743)
OKLCH	oklch(41.97% 0.174 268.3)
XYZ	xyz(9.8125, 6.7778, 38.8135)
Luminance	0.0678 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273EAA #AA9327

analogous

#277FAA #273EAA #5227AA

triadic

#273EAA #AA273E #3EAA27

tetradic

#273EAA #AA277F #AA9327 #27AA52

square

#273EAA #AA277F #AA9327 #27AA52

split-complementary

#273EAA #AA5227 #7FAA27

monochromatic

#101A46 #1C2C78 #273EAA #3C56D2 #6E81DE

Accessibility & contrast

On white

8.91

#273EAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#273EAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273EAA

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273EAA	#FFFFFF	#000000	##FFFFFF
##273EAA	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AD

Deuteranopia (green-blind)

#0044A8

Tritanopia (blue-blind)

#005A6E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #273eaa;
/* rgb */ color: rgb(39, 62, 170);
/* oklch */ color: oklch(42.0% 0.174 268.3);

Tailwind

colors: {
  custom: {
    50: '#7673c4',
    500: '#273eaa',
    950: '#000000',
  },
}

SCSS

$custom: #273eaa;
$custom-light: #7673c4;
$custom-dark: #000000;

JSON

{
  "hex": "#273eaa",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 170
  },
  "hsl": {
    "h": 229.466,
    "s": 62.679,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41968,
    "c": 0.17435,
    "h": 268.3
  },
  "luminance": 0.06779
}

Semantic roles & 50–950 ramp

primary

#273EAA

secondary

#C4B469

accent

#C942E6

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #273EAA

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

Preview Lab → · Contrast checker → · Palette generator →