#273D90#273D90

#273D90 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.5% C 0.140 H 268.1°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#273D90
RGB	rgb(39, 61, 144)
HSL	hsl(227, 57%, 36%)
HSV	hsv(227, 73%, 56%)
CMYK	cmyk(72.9%, 57.6%, 0%, 43.5%)
CIE-LAB	lab(28.85, 21.48, -48.47)
CIE-LCH	lch(28.85, 53.01, 293.90°)
OKLab	oklab(39.48% -0.0047 -0.1397)
OKLCH	oklch(39.48% 0.14 268.1)
XYZ	xyz(7.5377, 5.7817, 27.0989)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273D90 #907A27

analogous

#277190 #273D90 #462790

triadic

#273D90 #90273D #3D9027

tetradic

#273D90 #902771 #907A27 #279046

square

#273D90 #902771 #907A27 #279046

split-complementary

#273D90 #904627 #719027

monochromatic

#0D1430 #1A2960 #273D90 #3451C0 #5E77D3

Accessibility & contrast

On white

9.74

#273D90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#273D90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273D90

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273D90	#FFFFFF	#000000	##FFFFFF
##273D90	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004993

Deuteranopia (green-blind)

#003F8E

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #273d90;
/* rgb */ color: rgb(39, 61, 144);
/* oklch */ color: oklch(39.5% 0.140 268.1);

Tailwind

colors: {
  custom: {
    50: '#7072b1',
    500: '#273d90',
    950: '#000000',
  },
}

SCSS

$custom: #273d90;
$custom-light: #7072b1;
$custom-dark: #000000;

JSON

{
  "hex": "#273d90",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 144
  },
  "hsl": {
    "h": 227.429,
    "s": 57.377,
    "l": 35.882
  },
  "oklch": {
    "l": 0.39475,
    "c": 0.13974,
    "h": 268.1
  },
  "luminance": 0.05782
}

Semantic roles & 50–950 ramp

primary

#273D90

secondary

#B9A55A

accent

#C047E1

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #273D90

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

Preview Lab → · Contrast checker → · Palette generator →