#10355C#10355C

#10355C is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.5% C 0.081 H 252.7°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#10355C
RGB	rgb(16, 53, 92)
HSL	hsl(211, 70%, 21%)
HSV	hsv(211, 83%, 36%)
CMYK	cmyk(82.6%, 42.4%, 0%, 63.9%)
CIE-LAB	lab(21.68, 2.60, -27.05)
CIE-LCH	lch(21.68, 27.17, 275.49°)
OKLab	oklab(32.52% -0.0241 -0.0772)
OKLCH	oklch(32.52% 0.081 252.7)
XYZ	xyz(3.4178, 3.4287, 10.6048)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10355C #5C3710

analogous

#105B5C #10355C #11105C

triadic

#10355C #5C1035 #355C10

tetradic

#10355C #5C105B #5C3710 #105C11

square

#10355C #5C105B #5C3710 #105C11

split-complementary

#10355C #5C1110 #5B5C10

monochromatic

#050F1A #071728 #10355C #195390 #2271C4

Accessibility & contrast

On white

12.46

#10355C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#10355C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10355C

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10355C	#FFFFFF	#000000	##FFFFFF
##10355C	1.00	12.46	1.69	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22385E

Deuteranopia (green-blind)

#16315B

Tritanopia (blue-blind)

#003E44

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #10355c;
/* rgb */ color: rgb(16, 53, 92);
/* oklch */ color: oklch(32.5% 0.081 252.7);

Tailwind

colors: {
  custom: {
    50: '#5b6b8a',
    500: '#10355c',
    950: '#000000',
  },
}

SCSS

$custom: #10355c;
$custom-light: #5b6b8a;
$custom-dark: #000000;

JSON

{
  "hex": "#10355c",
  "rgb": {
    "r": 16,
    "g": 53,
    "b": 92
  },
  "hsl": {
    "h": 210.789,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.32523,
    "c": 0.08088,
    "h": 252.7
  },
  "luminance": 0.03429
}

Semantic roles & 50–950 ramp

primary

#10355C

secondary

#956533

accent

#963BED

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#04060C

muted

#797A7D

Preview Lab

Preview with #10355C

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

Preview Lab → · Contrast checker → · Palette generator →