#273C5D#273C5D

#273C5D is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.5% C 0.064 H 259.1°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#273C5D
RGB	rgb(39, 60, 93)
HSL	hsl(217, 41%, 26%)
HSV	hsv(217, 58%, 36%)
CMYK	cmyk(58.1%, 35.5%, 0%, 63.5%)
CIE-LAB	lab(25.12, 2.68, -22.20)
CIE-LCH	lch(25.12, 22.36, 276.89°)
OKLab	oklab(35.51% -0.012 -0.0626)
OKLCH	oklch(35.51% 0.064 259.1)
XYZ	xyz(4.4277, 4.4530, 10.9800)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273C5D #5D4827

analogous

#27575D #273C5D #2D275D

triadic

#273C5D #5D273C #3C5D27

tetradic

#273C5D #5D2757 #5D4827 #275D2D

square

#273C5D #5D2757 #5D4827 #275D2D

split-complementary

#273C5D #5D2D27 #575D27

monochromatic

#090E16 #152032 #273C5D #395888 #4B74B3

Accessibility & contrast

On white

11.11

#273C5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#273C5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273C5D

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273C5D	#FFFFFF	#000000	##FFFFFF
##273C5D	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3E5E

Deuteranopia (green-blind)

#28395C

Tritanopia (blue-blind)

#084348

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #273c5d;
/* rgb */ color: rgb(39, 60, 93);
/* oklch */ color: oklch(35.5% 0.064 259.1);

Tailwind

colors: {
  custom: {
    50: '#66718b',
    500: '#273c5d',
    950: '#000000',
  },
}

SCSS

$custom: #273c5d;
$custom-light: #66718b;
$custom-dark: #000000;

JSON

{
  "hex": "#273c5d",
  "rgb": {
    "r": 39,
    "g": 60,
    "b": 93
  },
  "hsl": {
    "h": 216.667,
    "s": 40.909,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35514,
    "c": 0.06373,
    "h": 259.1
  },
  "luminance": 0.04453
}

Semantic roles & 50–950 ramp

primary

#273C5D

secondary

#907750

accent

#A157D1

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #273C5D

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

Preview Lab → · Contrast checker → · Palette generator →