#303440#303440

#303440 is a dark, muted blue. Relative luminance 0.035; OKLCH L 32.6% C 0.022 H 270.7°. Best body text is #FFFFFF at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#303440
RGB	rgb(48, 52, 64)
HSL	hsl(225, 14%, 22%)
HSV	hsv(225, 25%, 25%)
CMYK	cmyk(25%, 18.8%, 0%, 74.9%)
CIE-LAB	lab(21.78, 1.46, -8.07)
CIE-LCH	lch(21.78, 8.20, 280.23°)
OKLab	oklab(32.62% 0.0003 -0.022)
OKLCH	oklch(32.62% 0.022 270.7)
XYZ	xyz(3.3721, 3.4544, 5.3386)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303440 #403C30

analogous

#303C40 #303440 #343040

triadic

#303440 #403034 #344030

tetradic

#303440 #40303C #403C30 #304034

square

#303440 #40303C #403C30 #304034

split-complementary

#303440 #403430 #3C4030

monochromatic

#0D0E11 #16181D #303440 #4A5063 #646D86

Accessibility & contrast

On white

12.42

#303440 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#303440 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303440

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303440	#FFFFFF	#000000	##FFFFFF
##303440	1.00	12.42	1.69	12.42
#FFFFFF	12.42	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313541

Deuteranopia (green-blind)

#2F3440

Tritanopia (blue-blind)

#2C3638

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #303440;
/* rgb */ color: rgb(48, 52, 64);
/* oklch */ color: oklch(32.6% 0.022 270.7);

Tailwind

colors: {
  custom: {
    50: '#686b74',
    500: '#303440',
    950: '#000000',
  },
}

SCSS

$custom: #303440;
$custom-light: #686b74;
$custom-dark: #000000;

JSON

{
  "hex": "#303440",
  "rgb": {
    "r": 48,
    "g": 52,
    "b": 64
  },
  "hsl": {
    "h": 225,
    "s": 14.286,
    "l": 21.961
  },
  "oklch": {
    "l": 0.32618,
    "c": 0.02202,
    "h": 270.7
  },
  "luminance": 0.03455
}

Semantic roles & 50–950 ramp

primary

#303440

secondary

#706B5C

accent

#A571B7

background

#F6F6F7

surface

#EBEBED

border

#C6C6C8

text

#060608

muted

#7A7A7B

Preview Lab

Preview with #303440

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

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