#273BA8#273BA8

#273BA8 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.2% C 0.175 H 268.9°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#273BA8
RGB	rgb(39, 59, 168)
HSL	hsl(231, 62%, 41%)
HSV	hsv(231, 77%, 66%)
CMYK	cmyk(76.8%, 64.9%, 0%, 34.1%)
CIE-LAB	lab(30.36, 31.92, -60.59)
CIE-LCH	lch(30.36, 68.48, 297.78°)
OKLab	oklab(41.23% -0.0033 -0.1752)
OKLCH	oklch(41.23% 0.175 268.9)
XYZ	xyz(9.4661, 6.3854, 37.7718)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273BA8 #A89427

analogous

#277BA8 #273BA8 #5427A8

triadic

#273BA8 #A8273B #3BA827

tetradic

#273BA8 #A8277B #A89427 #27A854

square

#273BA8 #A8277B #A89427 #27A854

split-complementary

#273BA8 #A85427 #7BA827

monochromatic

#101845 #1B2A76 #273BA8 #3B52D1 #6C7EDD

Accessibility & contrast

On white

9.22

#273BA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#273BA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273BA8

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273BA8	#FFFFFF	#000000	##FFFFFF
##273BA8	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAB

Deuteranopia (green-blind)

#0041A6

Tritanopia (blue-blind)

#00586C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #273ba8;
/* rgb */ color: rgb(39, 59, 168);
/* oklch */ color: oklch(41.2% 0.175 268.9);

Tailwind

colors: {
  custom: {
    50: '#7671c3',
    500: '#273ba8',
    950: '#000000',
  },
}

SCSS

$custom: #273ba8;
$custom-light: #7671c3;
$custom-dark: #000000;

JSON

{
  "hex": "#273ba8",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 168
  },
  "hsl": {
    "h": 230.698,
    "s": 62.319,
    "l": 40.588
  },
  "oklch": {
    "l": 0.41228,
    "c": 0.17528,
    "h": 268.9
  },
  "luminance": 0.06386
}

Semantic roles & 50–950 ramp

primary

#273BA8

secondary

#C3B567

accent

#CC42E5

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #273BA8

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

Preview Lab → · Contrast checker → · Palette generator →