#273D9F#273D9F

#273D9F is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.8% C 0.161 H 268.4°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#273D9F
RGB	rgb(39, 61, 159)
HSL	hsl(229, 61%, 39%)
HSV	hsv(229, 75%, 62%)
CMYK	cmyk(75.5%, 61.6%, 0%, 37.6%)
CIE-LAB	lab(30.09, 27.22, -55.62)
CIE-LCH	lch(30.09, 61.92, 296.07°)
OKLab	oklab(40.78% -0.0043 -0.1606)
OKLCH	oklch(40.78% 0.161 268.4)
XYZ	xyz(8.7613, 6.2711, 33.5429)
Luminance	0.0627 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273D9F #9F8927

analogous

#27799F #273D9F #4D279F

triadic

#273D9F #9F273D #3D9F27

tetradic

#273D9F #9F2779 #9F8927 #279F4D

square

#273D9F #9F2779 #9F8927 #279F4D

split-complementary

#273D9F #9F4D27 #799F27

monochromatic

#0F173D #1B2A6E #273D9F #3651CE #677CDA

Accessibility & contrast

On white

9.32

#273D9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#273D9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273D9F

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273D9F	#FFFFFF	#000000	##FFFFFF
##273D9F	1.00	9.32	2.25	9.32
#FFFFFF	9.32	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA2

Deuteranopia (green-blind)

#00419D

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #273d9f;
/* rgb */ color: rgb(39, 61, 159);
/* oklch */ color: oklch(40.8% 0.161 268.4);

Tailwind

colors: {
  custom: {
    50: '#7472bc',
    500: '#273d9f',
    950: '#000000',
  },
}

SCSS

$custom: #273d9f;
$custom-light: #7472bc;
$custom-dark: #000000;

JSON

{
  "hex": "#273d9f",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 159
  },
  "hsl": {
    "h": 229,
    "s": 60.606,
    "l": 38.824
  },
  "oklch": {
    "l": 0.40779,
    "c": 0.16071,
    "h": 268.4
  },
  "luminance": 0.06272
}

Semantic roles & 50–950 ramp

primary

#273D9F

secondary

#C0AE62

accent

#C644E4

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #273D9F

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

Preview Lab → · Contrast checker → · Palette generator →