#103B5C#103B5C

#103B5C is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.1% C 0.074 H 245.9°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#103B5C
RGB	rgb(16, 59, 92)
HSL	hsl(206, 70%, 21%)
HSV	hsv(206, 83%, 36%)
CMYK	cmyk(82.6%, 35.9%, 0%, 63.9%)
CIE-LAB	lab(23.71, -1.56, -23.84)
CIE-LCH	lch(23.71, 23.89, 266.26°)
OKLab	oklab(34.11% -0.0303 -0.0677)
OKLCH	oklch(34.11% 0.074 245.9)
XYZ	xyz(3.7087, 4.0104, 10.7018)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103B5C #5C3110

analogous

#105C57 #103B5C #10155C

triadic

#103B5C #5C103B #3B5C10

tetradic

#103B5C #57105C #5C3110 #155C10

square

#103B5C #57105C #5C3110 #155C10

split-complementary

#103B5C #5C1015 #5C5710

monochromatic

#05111A #071A28 #103B5C #195C90 #227EC4

Accessibility & contrast

On white

11.65

#103B5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#103B5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103B5C

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103B5C	#FFFFFF	#000000	##FFFFFF
##103B5C	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3C5D

Deuteranopia (green-blind)

#21355B

Tritanopia (blue-blind)

#004347

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #103b5c;
/* rgb */ color: rgb(16, 59, 92);
/* oklch */ color: oklch(34.1% 0.074 245.9);

Tailwind

colors: {
  custom: {
    50: '#5b708a',
    500: '#103b5c',
    950: '#000000',
  },
}

SCSS

$custom: #103b5c;
$custom-light: #5b708a;
$custom-dark: #000000;

JSON

{
  "hex": "#103b5c",
  "rgb": {
    "r": 16,
    "g": 59,
    "b": 92
  },
  "hsl": {
    "h": 206.053,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.34108,
    "c": 0.07418,
    "h": 245.9
  },
  "luminance": 0.04011
}

Semantic roles & 50–950 ramp

primary

#103B5C

secondary

#955D33

accent

#883BED

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070B

muted

#797A7C

Preview Lab

Preview with #103B5C

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

Preview Lab → · Contrast checker → · Palette generator →