#273A89#273A89

#273A89 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.134 H 269.0°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#273A89
RGB	rgb(39, 58, 137)
HSL	hsl(228, 56%, 35%)
HSV	hsv(228, 72%, 54%)
CMYK	cmyk(71.5%, 57.7%, 0%, 46.3%)
CIE-LAB	lab(27.47, 20.84, -46.39)
CIE-LCH	lch(27.47, 50.86, 294.19°)
OKLab	oklab(38.26% -0.0024 -0.1336)
OKLCH	oklch(38.26% 0.134 269)
XYZ	xyz(6.8636, 5.2629, 24.3162)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273A89 #897627

analogous

#276B89 #273A89 #452789

triadic

#273A89 #89273A #3A8927

tetradic

#273A89 #89276B #897627 #278945

square

#273A89 #89276B #897627 #278945

split-complementary

#273A89 #894527 #6B8927

monochromatic

#0C122A #192659 #273A89 #354EB9 #5A71D0

Accessibility & contrast

On white

10.23

#273A89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#273A89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273A89

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273A89	#FFFFFF	#000000	##FFFFFF
##273A89	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468C

Deuteranopia (green-blind)

#003D87

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #273a89;
/* rgb */ color: rgb(39, 58, 137);
/* oklch */ color: oklch(38.3% 0.134 269.0);

Tailwind

colors: {
  custom: {
    50: '#6f6fac',
    500: '#273a89',
    950: '#000000',
  },
}

SCSS

$custom: #273a89;
$custom-light: #6f6fac;
$custom-dark: #000000;

JSON

{
  "hex": "#273a89",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 137
  },
  "hsl": {
    "h": 228.367,
    "s": 55.682,
    "l": 34.51
  },
  "oklch": {
    "l": 0.38263,
    "c": 0.13361,
    "h": 269
  },
  "luminance": 0.05264
}

Semantic roles & 50–950 ramp

primary

#273A89

secondary

#B5A357

accent

#C249DF

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #273A89

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

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