#273B5D#273B5D

#273B5D is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.3% C 0.065 H 260.5°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#273B5D
RGB	rgb(39, 59, 93)
HSL	hsl(218, 41%, 26%)
HSV	hsv(218, 58%, 36%)
CMYK	cmyk(58.1%, 36.6%, 0%, 63.5%)
CIE-LAB	lab(24.79, 3.37, -22.71)
CIE-LCH	lch(24.79, 22.96, 278.43°)
OKLab	oklab(35.26% -0.0107 -0.0641)
OKLCH	oklch(35.26% 0.065 260.5)
XYZ	xyz(4.3758, 4.3492, 10.9627)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273B5D #5D4927

analogous

#27565D #273B5D #2E275D

triadic

#273B5D #5D273B #3B5D27

tetradic

#273B5D #5D2756 #5D4927 #275D2E

square

#273B5D #5D2756 #5D4927 #275D2E

split-complementary

#273B5D #5D2E27 #565D27

monochromatic

#090E16 #152032 #273B5D #395688 #4B72B3

Accessibility & contrast

On white

11.23

#273B5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#273B5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273B5D

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273B5D	#FFFFFF	#000000	##FFFFFF
##273B5D	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3E5E

Deuteranopia (green-blind)

#27395C

Tritanopia (blue-blind)

#084247

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #273b5d;
/* rgb */ color: rgb(39, 59, 93);
/* oklch */ color: oklch(35.3% 0.065 260.5);

Tailwind

colors: {
  custom: {
    50: '#66708b',
    500: '#273b5d',
    950: '#000000',
  },
}

SCSS

$custom: #273b5d;
$custom-light: #66708b;
$custom-dark: #000000;

JSON

{
  "hex": "#273b5d",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 93
  },
  "hsl": {
    "h": 217.778,
    "s": 40.909,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35263,
    "c": 0.06495,
    "h": 260.5
  },
  "luminance": 0.0435
}

Semantic roles & 50–950 ramp

primary

#273B5D

secondary

#907850

accent

#A457D1

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #273B5D

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

Preview Lab → · Contrast checker → · Palette generator →