#273E87#273E87

#273E87 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.9% C 0.125 H 267.2°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#273E87
RGB	rgb(39, 62, 135)
HSL	hsl(226, 55%, 34%)
HSV	hsv(226, 71%, 53%)
CMYK	cmyk(71.1%, 54.1%, 0%, 47.1%)
CIE-LAB	lab(28.45, 17.31, -43.57)
CIE-LCH	lch(28.45, 46.88, 291.67°)
OKLab	oklab(38.95% -0.0062 -0.1252)
OKLCH	oklch(38.95% 0.125 267.2)
XYZ	xyz(6.9310, 5.6252, 23.6375)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273E87 #877027

analogous

#276E87 #273E87 #402787

triadic

#273E87 #87273E #3E8727

tetradic

#273E87 #87276E #877027 #278740

square

#273E87 #87276E #877027 #278740

split-complementary

#273E87 #874027 #6E8727

monochromatic

#0C1228 #192858 #273E87 #3554B6 #5976CF

Accessibility & contrast

On white

9.88

#273E87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#273E87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273E87

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273E87	#FFFFFF	#000000	##FFFFFF
##273E87	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D488A

Deuteranopia (green-blind)

#003F86

Tritanopia (blue-blind)

#004F5C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #273e87;
/* rgb */ color: rgb(39, 62, 135);
/* oklch */ color: oklch(38.9% 0.125 267.2);

Tailwind

colors: {
  custom: {
    50: '#6e72aa',
    500: '#273e87',
    950: '#000000',
  },
}

SCSS

$custom: #273e87;
$custom-light: #6e72aa;
$custom-dark: #000000;

JSON

{
  "hex": "#273e87",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 135
  },
  "hsl": {
    "h": 225.625,
    "s": 55.172,
    "l": 34.118
  },
  "oklch": {
    "l": 0.38949,
    "c": 0.12538,
    "h": 267.2
  },
  "luminance": 0.05626
}

Semantic roles & 50–950 ramp

primary

#273E87

secondary

#B49D56

accent

#BB49DF

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #273E87

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

Preview Lab → · Contrast checker → · Palette generator →