#273E64#273E64

#273E64 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.4% C 0.072 H 260.0°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#273E64
RGB	rgb(39, 62, 100)
HSL	hsl(217, 44%, 27%)
HSV	hsv(217, 61%, 39%)
CMYK	cmyk(61%, 38%, 0%, 60.8%)
CIE-LAB	lab(26.15, 3.90, -25.11)
CIE-LCH	lch(26.15, 25.42, 278.83°)
OKLab	oklab(36.44% -0.0125 -0.071)
OKLCH	oklch(36.44% 0.072 260)
XYZ	xyz(4.8588, 4.7963, 12.7239)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273E64 #644D27

analogous

#275D64 #273E64 #2F2764

triadic

#273E64 #64273E #3E6427

tetradic

#273E64 #64275D #644D27 #27642F

square

#273E64 #64275D #644D27 #27642F

split-complementary

#273E64 #642F27 #5D6427

monochromatic

#090E16 #162338 #273E64 #385990 #4C75B9

Accessibility & contrast

On white

10.72

#273E64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#273E64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273E64

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273E64	#FFFFFF	#000000	##FFFFFF
##273E64	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4166

Deuteranopia (green-blind)

#273B63

Tritanopia (blue-blind)

#00464C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #273e64;
/* rgb */ color: rgb(39, 62, 100);
/* oklch */ color: oklch(36.4% 0.072 260.0);

Tailwind

colors: {
  custom: {
    50: '#677390',
    500: '#273e64',
    950: '#000000',
  },
}

SCSS

$custom: #273e64;
$custom-light: #677390;
$custom-dark: #000000;

JSON

{
  "hex": "#273e64",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 100
  },
  "hsl": {
    "h": 217.377,
    "s": 43.885,
    "l": 27.255
  },
  "oklch": {
    "l": 0.36444,
    "c": 0.07215,
    "h": 260
  },
  "luminance": 0.04797
}

Semantic roles & 50–950 ramp

primary

#273E64

secondary

#977C50

accent

#A454D4

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06080C

muted

#7A7B7D

Preview Lab

Preview with #273E64

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

Preview Lab → · Contrast checker → · Palette generator →