#273CA7#273CA7

#273CA7 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.3% C 0.173 H 268.7°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#273CA7
RGB	rgb(39, 60, 167)
HSL	hsl(230, 62%, 40%)
HSV	hsv(230, 77%, 65%)
CMYK	cmyk(76.6%, 64.1%, 0%, 34.5%)
CIE-LAB	lab(30.53, 30.89, -59.73)
CIE-LCH	lch(30.53, 67.24, 297.35°)
OKLab	oklab(41.32% -0.0038 -0.1727)
OKLCH	oklch(41.32% 0.173 268.7)
XYZ	xyz(9.4252, 6.4520, 37.3004)
Luminance	0.0645 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273CA7 #A79227

analogous

#277CA7 #273CA7 #5227A7

triadic

#273CA7 #A7273C #3CA727

tetradic

#273CA7 #A7277C #A79227 #27A752

square

#273CA7 #A7277C #A79227 #27A752

split-complementary

#273CA7 #A75227 #7CA727

monochromatic

#101844 #1B2A75 #273CA7 #3A53D1 #6C7EDD

Accessibility & contrast

On white

9.17

#273CA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#273CA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273CA7

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273CA7	#FFFFFF	#000000	##FFFFFF
##273CA7	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAA

Deuteranopia (green-blind)

#0042A5

Tritanopia (blue-blind)

#00586C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #273ca7;
/* rgb */ color: rgb(39, 60, 167);
/* oklch */ color: oklch(41.3% 0.173 268.7);

Tailwind

colors: {
  custom: {
    50: '#7671c2',
    500: '#273ca7',
    950: '#000000',
  },
}

SCSS

$custom: #273ca7;
$custom-light: #7671c2;
$custom-dark: #000000;

JSON

{
  "hex": "#273ca7",
  "rgb": {
    "r": 39,
    "g": 60,
    "b": 167
  },
  "hsl": {
    "h": 230.156,
    "s": 62.136,
    "l": 40.392
  },
  "oklch": {
    "l": 0.41318,
    "c": 0.17275,
    "h": 268.7
  },
  "luminance": 0.06453
}

Semantic roles & 50–950 ramp

primary

#273CA7

secondary

#C3B467

accent

#CB43E5

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #273CA7

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

Preview Lab → · Contrast checker → · Palette generator →