#10355A#10355A

#10355A is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.4% C 0.078 H 251.6°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#10355A
RGB	rgb(16, 53, 90)
HSL	hsl(210, 70%, 21%)
HSV	hsv(210, 82%, 35%)
CMYK	cmyk(82.2%, 41.1%, 0%, 64.7%)
CIE-LAB	lab(21.56, 1.75, -25.93)
CIE-LCH	lch(21.56, 25.99, 273.85°)
OKLab	oklab(32.38% -0.0246 -0.0739)
OKLCH	oklch(32.38% 0.078 251.6)
XYZ	xyz(3.3316, 3.3942, 10.1504)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10355A #5A3510

analogous

#105A5A #10355A #10105A

triadic

#10355A #5A1035 #355A10

tetradic

#10355A #5A105A #5A3510 #105A10

square

#10355A #5A105A #5A3510 #105A10

split-complementary

#10355A #5A1010 #5A5A10

monochromatic

#050F1A #071626 #10355A #19548E #2272C2

Accessibility & contrast

On white

12.51

#10355A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#10355A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10355A

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10355A	#FFFFFF	#000000	##FFFFFF
##10355A	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24375C

Deuteranopia (green-blind)

#183159

Tritanopia (blue-blind)

#003E43

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #10355a;
/* rgb */ color: rgb(16, 53, 90);
/* oklch */ color: oklch(32.4% 0.078 251.6);

Tailwind

colors: {
  custom: {
    50: '#5b6b89',
    500: '#10355a',
    950: '#000000',
  },
}

SCSS

$custom: #10355a;
$custom-light: #5b6b89;
$custom-dark: #000000;

JSON

{
  "hex": "#10355a",
  "rgb": {
    "r": 16,
    "g": 53,
    "b": 90
  },
  "hsl": {
    "h": 210,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.32382,
    "c": 0.07794,
    "h": 251.6
  },
  "luminance": 0.03395
}

Semantic roles & 50–950 ramp

primary

#10355A

secondary

#936333

accent

#943BED

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#04060B

muted

#797A7C

Preview Lab

Preview with #10355A

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

Preview Lab → · Contrast checker → · Palette generator →