#273C87#273C87

#273C87 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.5% C 0.128 H 268.1°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#273C87
RGB	rgb(39, 60, 135)
HSL	hsl(227, 55%, 34%)
HSV	hsv(227, 71%, 53%)
CMYK	cmyk(71.1%, 55.6%, 0%, 47.1%)
CIE-LAB	lab(27.88, 18.69, -44.49)
CIE-LCH	lch(27.88, 48.26, 292.79°)
OKLab	oklab(38.52% -0.0043 -0.128)
OKLCH	oklch(38.52% 0.128 268.1)
XYZ	xyz(6.8242, 5.4116, 23.6019)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273C87 #877227

analogous

#276C87 #273C87 #422787

triadic

#273C87 #87273C #3C8727

tetradic

#273C87 #87276C #877227 #278742

square

#273C87 #87276C #877227 #278742

split-complementary

#273C87 #874227 #6C8727

monochromatic

#0C1228 #192758 #273C87 #3551B6 #5973CF

Accessibility & contrast

On white

10.08

#273C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#273C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273C87

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273C87	#FFFFFF	#000000	##FFFFFF
##273C87	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03468A

Deuteranopia (green-blind)

#003E85

Tritanopia (blue-blind)

#004E5B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #273c87;
/* rgb */ color: rgb(39, 60, 135);
/* oklch */ color: oklch(38.5% 0.128 268.1);

Tailwind

colors: {
  custom: {
    50: '#6e71ab',
    500: '#273c87',
    950: '#000000',
  },
}

SCSS

$custom: #273c87;
$custom-light: #6e71ab;
$custom-dark: #000000;

JSON

{
  "hex": "#273c87",
  "rgb": {
    "r": 39,
    "g": 60,
    "b": 135
  },
  "hsl": {
    "h": 226.875,
    "s": 55.172,
    "l": 34.118
  },
  "oklch": {
    "l": 0.38519,
    "c": 0.12805,
    "h": 268.1
  },
  "luminance": 0.05412
}

Semantic roles & 50–950 ramp

primary

#273C87

secondary

#B49F56

accent

#BE49DF

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #273C87

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

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