#273E8F#273E8F

#273E8F is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.6% C 0.137 H 267.7°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#273E8F
RGB	rgb(39, 62, 143)
HSL	hsl(227, 57%, 36%)
HSV	hsv(227, 73%, 56%)
CMYK	cmyk(72.7%, 56.6%, 0%, 43.9%)
CIE-LAB	lab(29.05, 20.41, -47.53)
CIE-LCH	lch(29.05, 51.73, 293.24°)
OKLab	oklab(39.6% -0.0055 -0.1369)
OKLCH	oklch(39.6% 0.137 267.7)
XYZ	xyz(7.5155, 5.8590, 26.7161)
Luminance	0.0586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273E8F #8F7827

analogous

#27728F #273E8F #44278F

triadic

#273E8F #8F273E #3E8F27

tetradic

#273E8F #8F2772 #8F7827 #278F44

square

#273E8F #8F2772 #8F7827 #278F44

split-complementary

#273E8F #8F4427 #728F27

monochromatic

#0D142F #1A295F #273E8F #3453BF #5D77D3

Accessibility & contrast

On white

9.67

#273E8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#273E8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273E8F

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273E8F	#FFFFFF	#000000	##FFFFFF
##273E8F	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004992

Deuteranopia (green-blind)

#00408D

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #273e8f;
/* rgb */ color: rgb(39, 62, 143);
/* oklch */ color: oklch(39.6% 0.137 267.7);

Tailwind

colors: {
  custom: {
    50: '#7072b0',
    500: '#273e8f',
    950: '#000000',
  },
}

SCSS

$custom: #273e8f;
$custom-light: #7072b0;
$custom-dark: #000000;

JSON

{
  "hex": "#273e8f",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 143
  },
  "hsl": {
    "h": 226.731,
    "s": 57.143,
    "l": 35.686
  },
  "oklch": {
    "l": 0.396,
    "c": 0.13699,
    "h": 267.7
  },
  "luminance": 0.0586
}

Semantic roles & 50–950 ramp

primary

#273E8F

secondary

#B8A35A

accent

#BF47E0

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080811

muted

#7B7B80

Preview Lab

Preview with #273E8F

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

Preview Lab → · Contrast checker → · Palette generator →