#273B59#273B59

#273B59 is a dark, muted blue. Relative luminance 0.043; OKLCH L 35.0% C 0.059 H 258.3°. Best body text is #FFFFFF at 11.31:1 contrast (WCAG AA passes).

Color values

HEX	#273B59
RGB	rgb(39, 59, 89)
HSL	hsl(216, 39%, 25%)
HSV	hsv(216, 56%, 35%)
CMYK	cmyk(56.2%, 33.7%, 0%, 65.1%)
CIE-LAB	lab(24.58, 1.91, -20.44)
CIE-LCH	lch(24.58, 20.53, 275.35°)
OKLab	oklab(35.02% -0.0119 -0.0575)
OKLCH	oklch(35.02% 0.059 258.3)
XYZ	xyz(4.2032, 4.2802, 10.0539)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273B59 #594527

analogous

#275459 #273B59 #2C2759

triadic

#273B59 #59273B #3B5927

tetradic

#273B59 #592754 #594527 #27592C

square

#273B59 #592754 #594527 #27592C

split-complementary

#273B59 #592C27 #545927

monochromatic

#090E15 #141F2E #273B59 #3A5784 #4C73AE

Accessibility & contrast

On white

11.31

#273B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#273B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273B59

11.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273B59	#FFFFFF	#000000	##FFFFFF
##273B59	1.00	11.31	1.86	11.31
#FFFFFF	11.31	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3D5A

Deuteranopia (green-blind)

#293858

Tritanopia (blue-blind)

#0E4246

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #273b59;
/* rgb */ color: rgb(39, 59, 89);
/* oklch */ color: oklch(35.0% 0.059 258.3);

Tailwind

colors: {
  custom: {
    50: '#657088',
    500: '#273b59',
    950: '#000000',
  },
}

SCSS

$custom: #273b59;
$custom-light: #657088;
$custom-dark: #000000;

JSON

{
  "hex": "#273b59",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 89
  },
  "hsl": {
    "h": 216,
    "s": 39.062,
    "l": 25.098
  },
  "oklch": {
    "l": 0.35023,
    "c": 0.0587,
    "h": 258.3
  },
  "luminance": 0.04281
}

Semantic roles & 50–950 ramp

primary

#273B59

secondary

#8C7450

accent

#A059CF

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#06070B

muted

#7A7A7C

Preview Lab

Preview with #273B59

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

Preview Lab → · Contrast checker → · Palette generator →