#273E9C#273E9C

#273E9C is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.7% C 0.155 H 268.1°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#273E9C
RGB	rgb(39, 62, 156)
HSL	hsl(228, 60%, 38%)
HSV	hsv(228, 75%, 61%)
CMYK	cmyk(75%, 60.3%, 0%, 38.8%)
CIE-LAB	lab(30.10, 25.40, -53.78)
CIE-LCH	lch(30.10, 59.48, 295.29°)
OKLab	oklab(40.71% -0.0051 -0.1552)
OKLCH	oklch(40.71% 0.155 268.1)
XYZ	xyz(8.5580, 6.2760, 32.2064)
Luminance	0.0628 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273E9C #9C8527

analogous

#27789C #273E9C #4A279C

triadic

#273E9C #9C273E #3E9C27

tetradic

#273E9C #9C2778 #9C8527 #279C4A

square

#273E9C #9C2778 #9C8527 #279C4A

split-complementary

#273E9C #9C4A27 #789C27

monochromatic

#0F173A #1B2B6B #273E9C #3452CC #657CD8

Accessibility & contrast

On white

9.31

#273E9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#273E9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273E9C

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273E9C	#FFFFFF	#000000	##FFFFFF
##273E9C	1.00	9.31	2.26	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9F

Deuteranopia (green-blind)

#00429A

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #273e9c;
/* rgb */ color: rgb(39, 62, 156);
/* oklch */ color: oklch(40.7% 0.155 268.1);

Tailwind

colors: {
  custom: {
    50: '#7373ba',
    500: '#273e9c',
    950: '#000000',
  },
}

SCSS

$custom: #273e9c;
$custom-light: #7373ba;
$custom-dark: #000000;

JSON

{
  "hex": "#273e9c",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 156
  },
  "hsl": {
    "h": 228.205,
    "s": 60,
    "l": 38.235
  },
  "oklch": {
    "l": 0.40709,
    "c": 0.15532,
    "h": 268.1
  },
  "luminance": 0.06277
}

Semantic roles & 50–950 ramp

primary

#273E9C

secondary

#BEAC61

accent

#C445E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #273E9C

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

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