#273CA0#273CA0

#273CA0 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.7% C 0.163 H 268.7°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#273CA0
RGB	rgb(39, 60, 160)
HSL	hsl(230, 61%, 39%)
HSV	hsv(230, 76%, 63%)
CMYK	cmyk(75.6%, 62.5%, 0%, 37.3%)
CIE-LAB	lab(29.91, 28.26, -56.51)
CIE-LCH	lch(29.91, 63.18, 296.57°)
OKLab	oklab(40.68% -0.0037 -0.1633)
OKLCH	oklch(40.68% 0.163 268.7)
XYZ	xyz(8.7955, 6.2002, 33.9841)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273CA0 #A08B27

analogous

#2779A0 #273CA0 #4F27A0

triadic

#273CA0 #A0273C #3CA027

tetradic

#273CA0 #A02779 #A08B27 #27A04F

square

#273CA0 #A02779 #A08B27 #27A04F

split-complementary

#273CA0 #A04F27 #79A027

monochromatic

#0F173E #1B2A6F #273CA0 #3651CE #677BDA

Accessibility & contrast

On white

9.37

#273CA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#273CA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273CA0

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273CA0	#FFFFFF	#000000	##FFFFFF
##273CA0	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA3

Deuteranopia (green-blind)

#00419E

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #273ca0;
/* rgb */ color: rgb(39, 60, 160);
/* oklch */ color: oklch(40.7% 0.163 268.7);

Tailwind

colors: {
  custom: {
    50: '#7471bd',
    500: '#273ca0',
    950: '#000000',
  },
}

SCSS

$custom: #273ca0;
$custom-light: #7471bd;
$custom-dark: #000000;

JSON

{
  "hex": "#273ca0",
  "rgb": {
    "r": 39,
    "g": 60,
    "b": 160
  },
  "hsl": {
    "h": 229.587,
    "s": 60.804,
    "l": 39.02
  },
  "oklch": {
    "l": 0.40676,
    "c": 0.16332,
    "h": 268.7
  },
  "luminance": 0.06201
}

Semantic roles & 50–950 ramp

primary

#273CA0

secondary

#C0B063

accent

#C844E4

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #273CA0

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

Preview Lab → · Contrast checker → · Palette generator →