#103A5F#103A5F

#103A5F is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.079 H 249.1°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#103A5F
RGB	rgb(16, 58, 95)
HSL	hsl(208, 71%, 22%)
HSV	hsv(208, 83%, 37%)
CMYK	cmyk(83.2%, 38.9%, 0%, 62.7%)
CIE-LAB	lab(23.55, 0.39, -26.05)
CIE-LCH	lch(23.55, 26.06, 270.85°)
OKLab	oklab(34.04% -0.0283 -0.0742)
OKLCH	oklch(34.04% 0.079 249.1)
XYZ	xyz(3.7915, 3.9620, 11.3892)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103A5F #5F3510

analogous

#105F5D #103A5F #10135F

triadic

#103A5F #5F103A #3A5F10

tetradic

#103A5F #5D105F #5F3510 #135F10

square

#103A5F #5D105F #5F3510 #135F10

split-complementary

#103A5F #5F1013 #5F5D10

monochromatic

#04101A #071A2B #103A5F #195A93 #227AC8

Accessibility & contrast

On white

11.72

#103A5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#103A5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103A5F

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103A5F	#FFFFFF	#000000	##FFFFFF
##103A5F	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293C61

Deuteranopia (green-blind)

#1D355E

Tritanopia (blue-blind)

#004348

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #103a5f;
/* rgb */ color: rgb(16, 58, 95);
/* oklch */ color: oklch(34.0% 0.079 249.1);

Tailwind

colors: {
  custom: {
    50: '#5c6f8c',
    500: '#103a5f',
    950: '#000000',
  },
}

SCSS

$custom: #103a5f;
$custom-light: #5c6f8c;
$custom-dark: #000000;

JSON

{
  "hex": "#103a5f",
  "rgb": {
    "r": 16,
    "g": 58,
    "b": 95
  },
  "hsl": {
    "h": 208.101,
    "s": 71.171,
    "l": 21.765
  },
  "oklch": {
    "l": 0.3404,
    "c": 0.07942,
    "h": 249.1
  },
  "luminance": 0.03962
}

Semantic roles & 50–950 ramp

primary

#103A5F

secondary

#986233

accent

#8E3AEE

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #103A5F

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

Preview Lab → · Contrast checker → · Palette generator →