#273B4E#273B4E

#273B4E is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.042 H 247.9°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#273B4E
RGB	rgb(39, 59, 78)
HSL	hsl(209, 33%, 23%)
HSV	hsv(209, 50%, 31%)
CMYK	cmyk(50%, 24.4%, 0%, 69.4%)
CIE-LAB	lab(24.03, -1.94, -14.05)
CIE-LCH	lch(24.03, 14.18, 262.14°)
OKLab	oklab(34.41% -0.0159 -0.0391)
OKLCH	oklch(34.41% 0.042 247.9)
XYZ	xyz(3.7753, 4.1091, 7.8004)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273B4E #4E3A27

analogous

#274E4D #273B4E #27274E

triadic

#273B4E #4E273B #3B4E27

tetradic

#273B4E #4D274E #4E3A27 #274E27

square

#273B4E #4D274E #4E3A27 #274E27

split-complementary

#273B4E #4E2727 #4E4D27

monochromatic

#0A0F14 #131C25 #273B4E #3B5A77 #5079A0

Accessibility & contrast

On white

11.53

#273B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#273B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273B4E

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273B4E	#FFFFFF	#000000	##FFFFFF
##273B4E	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333B4F

Deuteranopia (green-blind)

#2E374E

Tritanopia (blue-blind)

#173F41

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #273b4e;
/* rgb */ color: rgb(39, 59, 78);
/* oklch */ color: oklch(34.4% 0.042 247.9);

Tailwind

colors: {
  custom: {
    50: '#63707f',
    500: '#273b4e',
    950: '#000000',
  },
}

SCSS

$custom: #273b4e;
$custom-light: #63707f;
$custom-dark: #000000;

JSON

{
  "hex": "#273b4e",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 78
  },
  "hsl": {
    "h": 209.231,
    "s": 33.333,
    "l": 22.941
  },
  "oklch": {
    "l": 0.34412,
    "c": 0.04218,
    "h": 247.9
  },
  "luminance": 0.04109
}

Semantic roles & 50–950 ramp

primary

#273B4E

secondary

#816850

accent

#935EC9

background

#F6F6F7

surface

#EBECEE

border

#C6C7C9

text

#05070A

muted

#7A7A7C

Preview Lab

Preview with #273B4E

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

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