#273BA0#273BA0

#273BA0 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.5% C 0.165 H 269.0°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#273BA0
RGB	rgb(39, 59, 160)
HSL	hsl(230, 61%, 39%)
HSV	hsv(230, 76%, 63%)
CMYK	cmyk(75.6%, 63.1%, 0%, 37.3%)
CIE-LAB	lab(29.65, 28.93, -56.93)
CIE-LCH	lch(29.65, 63.85, 296.94°)
OKLab	oklab(40.49% -0.003 -0.1645)
OKLCH	oklch(40.49% 0.165 269)
XYZ	xyz(8.7436, 6.0964, 33.9668)
Luminance	0.0610 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273BA0 #A08C27

analogous

#2778A0 #273BA0 #5027A0

triadic

#273BA0 #A0273B #3BA027

tetradic

#273BA0 #A02778 #A08C27 #27A050

square

#273BA0 #A02778 #A08C27 #27A050

split-complementary

#273BA0 #A05027 #78A027

monochromatic

#0F173E #1B296F #273BA0 #364FCE #677ADA

Accessibility & contrast

On white

9.46

#273BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#273BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273BA0

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273BA0	#FFFFFF	#000000	##FFFFFF
##273BA0	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA3

Deuteranopia (green-blind)

#00409E

Tritanopia (blue-blind)

#005568

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #273ba0;
/* rgb */ color: rgb(39, 59, 160);
/* oklch */ color: oklch(40.5% 0.165 269.0);

Tailwind

colors: {
  custom: {
    50: '#7470bd',
    500: '#273ba0',
    950: '#000000',
  },
}

SCSS

$custom: #273ba0;
$custom-light: #7470bd;
$custom-dark: #000000;

JSON

{
  "hex": "#273ba0",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 160
  },
  "hsl": {
    "h": 230.083,
    "s": 60.804,
    "l": 39.02
  },
  "oklch": {
    "l": 0.40486,
    "c": 0.16455,
    "h": 269
  },
  "luminance": 0.06097
}

Semantic roles & 50–950 ramp

primary

#273BA0

secondary

#C0B163

accent

#C944E4

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #273BA0

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

Preview Lab → · Contrast checker → · Palette generator →