#303C4E#303C4E

#303C4E is a dark, muted blue. Relative luminance 0.044; OKLCH L 35.3% C 0.035 H 258.3°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#303C4E
RGB	rgb(48, 60, 78)
HSL	hsl(216, 24%, 25%)
HSV	hsv(216, 38%, 31%)
CMYK	cmyk(38.5%, 23.1%, 0%, 69.4%)
CIE-LAB	lab(24.98, 0.25, -12.53)
CIE-LCH	lch(24.98, 12.53, 271.15°)
OKLab	oklab(35.33% -0.0071 -0.0346)
OKLCH	oklch(35.33% 0.035 258.3)
XYZ	xyz(4.2095, 4.4100, 7.8357)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303C4E #4E4230

analogous

#304B4E #303C4E #33304E

triadic

#303C4E #4E303C #3C4E30

tetradic

#303C4E #4E304B #4E4230 #304E33

square

#303C4E #4E304B #4E4230 #304E33

split-complementary

#303C4E #4E3330 #4B4E30

monochromatic

#0C0F13 #191F28 #303C4E #475974 #5F769A

Accessibility & contrast

On white

11.16

#303C4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#303C4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303C4E

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303C4E	#FFFFFF	#000000	##FFFFFF
##303C4E	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363D4F

Deuteranopia (green-blind)

#323A4E

Tritanopia (blue-blind)

#274042

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #303c4e;
/* rgb */ color: rgb(48, 60, 78);
/* oklch */ color: oklch(35.3% 0.035 258.3);

Tailwind

colors: {
  custom: {
    50: '#69717f',
    500: '#303c4e',
    950: '#000000',
  },
}

SCSS

$custom: #303c4e;
$custom-light: #69717f;
$custom-dark: #000000;

JSON

{
  "hex": "#303c4e",
  "rgb": {
    "r": 48,
    "g": 60,
    "b": 78
  },
  "hsl": {
    "h": 216,
    "s": 23.81,
    "l": 24.706
  },
  "oklch": {
    "l": 0.35326,
    "c": 0.03535,
    "h": 258.3
  },
  "luminance": 0.0441
}

Semantic roles & 50–950 ramp

primary

#303C4E

secondary

#7F715B

accent

#9D68C0

background

#F6F6F7

surface

#EBECEE

border

#C6C7C9

text

#06070A

muted

#7A7A7C

Preview Lab

Preview with #303C4E

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

Preview Lab → · Contrast checker → · Palette generator →