#10355E#10355E

#10355E is a dark, moderate cyan. Relative luminance 0.035; OKLCH L 32.7% C 0.084 H 253.7°. Best body text is #FFFFFF at 12.40:1 contrast (WCAG AA passes).

Color values

HEX	#10355E
RGB	rgb(16, 53, 94)
HSL	hsl(212, 71%, 22%)
HSV	hsv(212, 83%, 37%)
CMYK	cmyk(83%, 43.6%, 0%, 63.1%)
CIE-LAB	lab(21.81, 3.46, -28.15)
CIE-LCH	lch(21.81, 28.36, 277.00°)
OKLab	oklab(32.67% -0.0236 -0.0805)
OKLCH	oklch(32.67% 0.084 253.7)
XYZ	xyz(3.5064, 3.4641, 11.0713)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10355E #5E3910

analogous

#105C5E #10355E #12105E

triadic

#10355E #5E1035 #355E10

tetradic

#10355E #5E105C #5E3910 #105E12

square

#10355E #5E105C #5E3910 #105E12

split-complementary

#10355E #5E1210 #5C5E10

monochromatic

#040F1A #07182A #10355E #195292 #2270C7

Accessibility & contrast

On white

12.40

#10355E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#10355E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10355E

12.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10355E	#FFFFFF	#000000	##FFFFFF
##10355E	1.00	12.40	1.69	12.40
#FFFFFF	12.40	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#213860

Deuteranopia (green-blind)

#14315D

Tritanopia (blue-blind)

#003F44

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #10355e;
/* rgb */ color: rgb(16, 53, 94);
/* oklch */ color: oklch(32.7% 0.084 253.7);

Tailwind

colors: {
  custom: {
    50: '#5c6b8c',
    500: '#10355e',
    950: '#000000',
  },
}

SCSS

$custom: #10355e;
$custom-light: #5c6b8c;
$custom-dark: #000000;

JSON

{
  "hex": "#10355e",
  "rgb": {
    "r": 16,
    "g": 53,
    "b": 94
  },
  "hsl": {
    "h": 211.538,
    "s": 70.909,
    "l": 21.569
  },
  "oklch": {
    "l": 0.32665,
    "c": 0.08384,
    "h": 253.7
  },
  "luminance": 0.03465
}

Semantic roles & 50–950 ramp

primary

#10355E

secondary

#976733

accent

#993AEE

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #10355E

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

Preview Lab → · Contrast checker → · Palette generator →