#273B70#273B70

#273B70 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.5% C 0.095 H 266.3°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#273B70
RGB	rgb(39, 59, 112)
HSL	hsl(224, 48%, 30%)
HSV	hsv(224, 65%, 44%)
CMYK	cmyk(65.2%, 47.3%, 0%, 56.1%)
CIE-LAB	lab(25.95, 10.51, -33.12)
CIE-LCH	lch(25.95, 34.75, 287.60°)
OKLab	oklab(36.53% -0.0062 -0.0946)
OKLCH	oklch(36.53% 0.095 266.3)
XYZ	xyz(5.3243, 4.7287, 15.9582)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273B70 #705C27

analogous

#275F70 #273B70 #382770

triadic

#273B70 #70273B #3B7027

tetradic

#273B70 #70275F #705C27 #277038

square

#273B70 #70275F #705C27 #277038

split-complementary

#273B70 #703827 #5F7027

monochromatic

#080C17 #172343 #273B70 #37539D #506FC2

Accessibility & contrast

On white

10.79

#273B70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#273B70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273B70

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273B70	#FFFFFF	#000000	##FFFFFF
##273B70	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224172

Deuteranopia (green-blind)

#163A6F

Tritanopia (blue-blind)

#004750

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #273b70;
/* rgb */ color: rgb(39, 59, 112);
/* oklch */ color: oklch(36.5% 0.095 266.3);

Tailwind

colors: {
  custom: {
    50: '#697099',
    500: '#273b70',
    950: '#000000',
  },
}

SCSS

$custom: #273b70;
$custom-light: #697099;
$custom-dark: #000000;

JSON

{
  "hex": "#273b70",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 112
  },
  "hsl": {
    "h": 223.562,
    "s": 48.344,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36529,
    "c": 0.09476,
    "h": 266.3
  },
  "luminance": 0.04729
}

Semantic roles & 50–950 ramp

primary

#273B70

secondary

#A28C50

accent

#B350D8

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #273B70

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

Preview Lab → · Contrast checker → · Palette generator →