#103A5A#103A5A

#103A5A is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.7% C 0.072 H 245.6°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#103A5A
RGB	rgb(16, 58, 90)
HSL	hsl(206, 70%, 21%)
HSV	hsv(206, 82%, 35%)
CMYK	cmyk(82.2%, 35.6%, 0%, 64.7%)
CIE-LAB	lab(23.25, -1.71, -23.25)
CIE-LCH	lch(23.25, 23.31, 265.79°)
OKLab	oklab(33.71% -0.0299 -0.066)
OKLCH	oklch(33.71% 0.072 245.6)
XYZ	xyz(3.5715, 3.8740, 10.2304)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103A5A #5A3010

analogous

#105A55 #103A5A #10155A

triadic

#103A5A #5A103A #3A5A10

tetradic

#103A5A #55105A #5A3010 #155A10

square

#103A5A #55105A #5A3010 #155A10

split-complementary

#103A5A #5A1015 #5A5510

monochromatic

#05111A #071926 #103A5A #195B8E #227DC2

Accessibility & contrast

On white

11.83

#103A5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#103A5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103A5A

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103A5A	#FFFFFF	#000000	##FFFFFF
##103A5A	1.00	11.83	1.77	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3B5B

Deuteranopia (green-blind)

#213459

Tritanopia (blue-blind)

#004245

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #103a5a;
/* rgb */ color: rgb(16, 58, 90);
/* oklch */ color: oklch(33.7% 0.072 245.6);

Tailwind

colors: {
  custom: {
    50: '#5b6f89',
    500: '#103a5a',
    950: '#000000',
  },
}

SCSS

$custom: #103a5a;
$custom-light: #5b6f89;
$custom-dark: #000000;

JSON

{
  "hex": "#103a5a",
  "rgb": {
    "r": 16,
    "g": 58,
    "b": 90
  },
  "hsl": {
    "h": 205.946,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.33712,
    "c": 0.07246,
    "h": 245.6
  },
  "luminance": 0.03874
}

Semantic roles & 50–950 ramp

primary

#103A5A

secondary

#935C33

accent

#883BED

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070B

muted

#797A7C

Preview Lab

Preview with #103A5A

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

Preview Lab → · Contrast checker → · Palette generator →