#273C83#273C83

#273C83 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.2% C 0.122 H 267.8°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#273C83
RGB	rgb(39, 60, 131)
HSL	hsl(226, 54%, 33%)
HSV	hsv(226, 70%, 51%)
CMYK	cmyk(70.2%, 54.2%, 0%, 48.6%)
CIE-LAB	lab(27.58, 17.14, -42.49)
CIE-LCH	lch(27.58, 45.82, 291.97°)
OKLab	oklab(38.2% -0.0047 -0.1221)
OKLCH	oklch(38.2% 0.122 267.8)
XYZ	xyz(6.5479, 5.3011, 22.1465)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273C83 #836E27

analogous

#276A83 #273C83 #402783

triadic

#273C83 #83273C #3C8327

tetradic

#273C83 #83276A #836E27 #278340

square

#273C83 #83276A #836E27 #278340

split-complementary

#273C83 #834027 #6A8327

monochromatic

#0B1125 #192654 #273C83 #3552B2 #5772CD

Accessibility & contrast

On white

10.19

#273C83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#273C83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273C83

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273C83	#FFFFFF	#000000	##FFFFFF
##273C83	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4586

Deuteranopia (green-blind)

#003D82

Tritanopia (blue-blind)

#004D59

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #273c83;
/* rgb */ color: rgb(39, 60, 131);
/* oklch */ color: oklch(38.2% 0.122 267.8);

Tailwind

colors: {
  custom: {
    50: '#6d71a8',
    500: '#273c83',
    950: '#000000',
  },
}

SCSS

$custom: #273c83;
$custom-light: #6d71a8;
$custom-dark: #000000;

JSON

{
  "hex": "#273c83",
  "rgb": {
    "r": 39,
    "g": 60,
    "b": 131
  },
  "hsl": {
    "h": 226.304,
    "s": 54.118,
    "l": 33.333
  },
  "oklch": {
    "l": 0.38196,
    "c": 0.12217,
    "h": 267.8
  },
  "luminance": 0.05302
}

Semantic roles & 50–950 ramp

primary

#273C83

secondary

#B29C54

accent

#BC4ADD

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #273C83

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

Preview Lab → · Contrast checker → · Palette generator →