#273A9E#273A9E

#273A9E is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.1% C 0.163 H 269.2°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#273A9E
RGB	rgb(39, 58, 158)
HSL	hsl(230, 60%, 39%)
HSV	hsv(230, 75%, 62%)
CMYK	cmyk(75.3%, 63.3%, 0%, 38%)
CIE-LAB	lab(29.22, 28.84, -56.42)
CIE-LCH	lch(29.22, 63.36, 297.07°)
OKLab	oklab(40.11% -0.0022 -0.163)
OKLCH	oklch(40.11% 0.163 269.2)
XYZ	xyz(8.5192, 5.9252, 33.0358)
Luminance	0.0593 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273A9E #9E8B27

analogous

#27759E #273A9E #4F279E

triadic

#273A9E #9E273A #3A9E27

tetradic

#273A9E #9E2775 #9E8B27 #279E4F

square

#273A9E #9E2775 #9E8B27 #279E4F

split-complementary

#273A9E #9E4F27 #759E27

monochromatic

#0F163C #1B286D #273A9E #354DCD #6679D9

Accessibility & contrast

On white

9.61

#273A9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#273A9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273A9E

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273A9E	#FFFFFF	#000000	##FFFFFF
##273A9E	1.00	9.61	2.19	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA1

Deuteranopia (green-blind)

#003F9C

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #273a9e;
/* rgb */ color: rgb(39, 58, 158);
/* oklch */ color: oklch(40.1% 0.163 269.2);

Tailwind

colors: {
  custom: {
    50: '#7470bc',
    500: '#273a9e',
    950: '#000000',
  },
}

SCSS

$custom: #273a9e;
$custom-light: #7470bc;
$custom-dark: #000000;

JSON

{
  "hex": "#273a9e",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 158
  },
  "hsl": {
    "h": 230.42,
    "s": 60.406,
    "l": 38.627
  },
  "oklch": {
    "l": 0.40113,
    "c": 0.16307,
    "h": 269.2
  },
  "luminance": 0.05926
}

Semantic roles & 50–950 ramp

primary

#273A9E

secondary

#BFB062

accent

#CA44E4

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #273A9E

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

Preview Lab → · Contrast checker → · Palette generator →