#103D5F#103D5F

#103D5F is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.8% C 0.076 H 245.7°. Best body text is #FFFFFF at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#103D5F
RGB	rgb(16, 61, 95)
HSL	hsl(206, 71%, 22%)
HSV	hsv(206, 83%, 37%)
CMYK	cmyk(83.2%, 35.8%, 0%, 62.7%)
CIE-LAB	lab(24.56, -1.66, -24.45)
CIE-LCH	lch(24.56, 24.51, 266.12°)
OKLab	oklab(34.83% -0.0314 -0.0695)
OKLCH	oklch(34.83% 0.076 245.7)
XYZ	xyz(3.9472, 4.2734, 11.4411)
Luminance	0.0427 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103D5F #5F3210

analogous

#105F5A #103D5F #10165F

triadic

#103D5F #5F103D #3D5F10

tetradic

#103D5F #5A105F #5F3210 #165F10

square

#103D5F #5A105F #5F3210 #165F10

split-complementary

#103D5F #5F1016 #5F5A10

monochromatic

#04111A #071B2B #103D5F #195F93 #2280C8

Accessibility & contrast

On white

11.32

#103D5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#103D5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103D5F

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103D5F	#FFFFFF	#000000	##FFFFFF
##103D5F	1.00	11.32	1.85	11.32
#FFFFFF	11.32	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3E60

Deuteranopia (green-blind)

#22375E

Tritanopia (blue-blind)

#004549

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #103d5f;
/* rgb */ color: rgb(16, 61, 95);
/* oklch */ color: oklch(34.8% 0.076 245.7);

Tailwind

colors: {
  custom: {
    50: '#5c728c',
    500: '#103d5f',
    950: '#000000',
  },
}

SCSS

$custom: #103d5f;
$custom-light: #5c728c;
$custom-dark: #000000;

JSON

{
  "hex": "#103d5f",
  "rgb": {
    "r": 16,
    "g": 61,
    "b": 95
  },
  "hsl": {
    "h": 205.823,
    "s": 71.171,
    "l": 21.765
  },
  "oklch": {
    "l": 0.34834,
    "c": 0.07623,
    "h": 245.7
  },
  "luminance": 0.04274
}

Semantic roles & 50–950 ramp

primary

#103D5F

secondary

#985E33

accent

#873AEE

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #103D5F

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

Preview Lab → · Contrast checker → · Palette generator →