#273DAF#273DAF

#273DAF is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.3% C 0.182 H 268.5°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#273DAF
RGB	rgb(39, 61, 175)
HSL	hsl(230, 64%, 42%)
HSV	hsv(230, 78%, 69%)
CMYK	cmyk(77.7%, 65.1%, 0%, 31.4%)
CIE-LAB	lab(31.49, 33.21, -62.93)
CIE-LCH	lch(31.49, 71.16, 297.82°)
OKLab	oklab(42.25% -0.0048 -0.1821)
OKLCH	oklch(42.25% 0.182 268.5)
XYZ	xyz(10.2406, 6.8628, 41.3341)
Luminance	0.0686 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273DAF #AF9927

analogous

#2781AF #273DAF #5527AF

triadic

#273DAF #AF273D #3DAF27

tetradic

#273DAF #AF2781 #AF9927 #27AF55

square

#273DAF #AF2781 #AF9927 #27AF55

split-complementary

#273DAF #AF5527 #81AF27

monochromatic

#111A4B #1C2C7D #273DAF #3F57D4 #7183DF

Accessibility & contrast

On white

8.85

#273DAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#273DAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273DAF

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273DAF	#FFFFFF	#000000	##FFFFFF
##273DAF	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B3

Deuteranopia (green-blind)

#0044AD

Tritanopia (blue-blind)

#005B70

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #273daf;
/* rgb */ color: rgb(39, 61, 175);
/* oklch */ color: oklch(42.3% 0.182 268.5);

Tailwind

colors: {
  custom: {
    50: '#7772c8',
    500: '#273daf',
    950: '#000000',
  },
}

SCSS

$custom: #273daf;
$custom-light: #7772c8;
$custom-dark: #000000;

JSON

{
  "hex": "#273daf",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 175
  },
  "hsl": {
    "h": 230.294,
    "s": 63.551,
    "l": 41.961
  },
  "oklch": {
    "l": 0.4225,
    "c": 0.18214,
    "h": 268.5
  },
  "luminance": 0.06864
}

Semantic roles & 50–950 ramp

primary

#273DAF

secondary

#C6B86B

accent

#CC41E7

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #273DAF

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

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