#273CA8#273CA8

#273CA8 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.4% C 0.174 H 268.7°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#273CA8
RGB	rgb(39, 60, 168)
HSL	hsl(230, 62%, 41%)
HSV	hsv(230, 77%, 66%)
CMYK	cmyk(76.8%, 64.3%, 0%, 34.1%)
CIE-LAB	lab(30.61, 31.26, -60.18)
CIE-LCH	lch(30.61, 67.82, 297.45°)
OKLab	oklab(41.41% -0.0039 -0.174)
OKLCH	oklch(41.41% 0.174 268.7)
XYZ	xyz(9.5180, 6.4892, 37.7891)
Luminance	0.0649 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273CA8 #A89327

analogous

#277CA8 #273CA8 #5327A8

triadic

#273CA8 #A8273C #3CA827

tetradic

#273CA8 #A8277C #A89327 #27A853

square

#273CA8 #A8277C #A89327 #27A853

split-complementary

#273CA8 #A85327 #7CA827

monochromatic

#101945 #1B2A76 #273CA8 #3B53D1 #6C7FDD

Accessibility & contrast

On white

9.14

#273CA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#273CA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273CA8

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273CA8	#FFFFFF	#000000	##FFFFFF
##273CA8	1.00	9.14	2.30	9.14
#FFFFFF	9.14	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAB

Deuteranopia (green-blind)

#0042A6

Tritanopia (blue-blind)

#00586C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #273ca8;
/* rgb */ color: rgb(39, 60, 168);
/* oklch */ color: oklch(41.4% 0.174 268.7);

Tailwind

colors: {
  custom: {
    50: '#7671c3',
    500: '#273ca8',
    950: '#000000',
  },
}

SCSS

$custom: #273ca8;
$custom-light: #7671c3;
$custom-dark: #000000;

JSON

{
  "hex": "#273ca8",
  "rgb": {
    "r": 39,
    "g": 60,
    "b": 168
  },
  "hsl": {
    "h": 230.233,
    "s": 62.319,
    "l": 40.588
  },
  "oklch": {
    "l": 0.41411,
    "c": 0.17408,
    "h": 268.7
  },
  "luminance": 0.0649
}

Semantic roles & 50–950 ramp

primary

#273CA8

secondary

#C3B467

accent

#CB42E5

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #273CA8

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

Preview Lab → · Contrast checker → · Palette generator →