#273C9F#273C9F

#273C9F is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.6% C 0.162 H 268.7°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#273C9F
RGB	rgb(39, 60, 159)
HSL	hsl(230, 61%, 39%)
HSV	hsv(230, 75%, 62%)
CMYK	cmyk(75.5%, 62.3%, 0%, 37.6%)
CIE-LAB	lab(29.83, 27.88, -56.04)
CIE-LCH	lch(29.83, 62.60, 296.45°)
OKLab	oklab(40.59% -0.0036 -0.1619)
OKLCH	oklch(40.59% 0.162 268.7)
XYZ	xyz(8.7084, 6.1653, 33.5252)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273C9F #9F8A27

analogous

#27789F #273C9F #4E279F

triadic

#273C9F #9F273C #3C9F27

tetradic

#273C9F #9F2778 #9F8A27 #279F4E

square

#273C9F #9F2778 #9F8A27 #279F4E

split-complementary

#273C9F #9F4E27 #789F27

monochromatic

#0F173D #1B296E #273C9F #3650CE #677BDA

Accessibility & contrast

On white

9.40

#273C9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#273C9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273C9F

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273C9F	#FFFFFF	#000000	##FFFFFF
##273C9F	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA2

Deuteranopia (green-blind)

#00419D

Tritanopia (blue-blind)

#005567

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #273c9f;
/* rgb */ color: rgb(39, 60, 159);
/* oklch */ color: oklch(40.6% 0.162 268.7);

Tailwind

colors: {
  custom: {
    50: '#7471bc',
    500: '#273c9f',
    950: '#000000',
  },
}

SCSS

$custom: #273c9f;
$custom-light: #7471bc;
$custom-dark: #000000;

JSON

{
  "hex": "#273c9f",
  "rgb": {
    "r": 39,
    "g": 60,
    "b": 159
  },
  "hsl": {
    "h": 229.5,
    "s": 60.606,
    "l": 38.824
  },
  "oklch": {
    "l": 0.40586,
    "c": 0.16195,
    "h": 268.7
  },
  "luminance": 0.06166
}

Semantic roles & 50–950 ramp

primary

#273C9F

secondary

#C0AF62

accent

#C844E4

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #273C9F

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

Preview Lab → · Contrast checker → · Palette generator →