#10384B#10384B

#10384B is a dark, muted cyan. Relative luminance 0.034; OKLCH L 32.3% C 0.055 H 232.9°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#10384B
RGB	rgb(16, 56, 75)
HSL	hsl(199, 65%, 18%)
HSV	hsv(199, 79%, 29%)
CMYK	cmyk(78.7%, 25.3%, 0%, 70.6%)
CIE-LAB	lab(21.75, -6.52, -15.67)
CIE-LCH	lch(21.75, 16.97, 247.41°)
OKLab	oklab(32.26% -0.0333 -0.044)
OKLCH	oklch(32.26% 0.055 232.9)
XYZ	xyz(2.8974, 3.4462, 7.1677)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10384B #4B2310

analogous

#104B40 #10384B #101A4B

triadic

#10384B #4B1038 #384B10

tetradic

#10384B #40104B #4B2310 #1A4B10

square

#10384B #40104B #4B2310 #1A4B10

split-complementary

#10384B #4B101A #4B4010

monochromatic

#051319 #051319 #10384B #1B5E7D #2683B0

Accessibility & contrast

On white

12.43

#10384B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#10384B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10384B

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10384B	#FFFFFF	#000000	##FFFFFF
##10384B	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F374C

Deuteranopia (green-blind)

#27324B

Tritanopia (blue-blind)

#003D3E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #10384b;
/* rgb */ color: rgb(16, 56, 75);
/* oklch */ color: oklch(32.3% 0.055 232.9);

Tailwind

colors: {
  custom: {
    50: '#576e7d',
    500: '#10384b',
    950: '#000000',
  },
}

SCSS

$custom: #10384b;
$custom-light: #576e7d;
$custom-dark: #000000;

JSON

{
  "hex": "#10384b",
  "rgb": {
    "r": 16,
    "g": 56,
    "b": 75
  },
  "hsl": {
    "h": 199.322,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.32256,
    "c": 0.05519,
    "h": 232.9
  },
  "luminance": 0.03447
}

Semantic roles & 50–950 ramp

primary

#10384B

secondary

#854D32

accent

#7640E8

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #10384B

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

Preview Lab → · Contrast checker → · Palette generator →