#103D5D#103D5D

#103D5D is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.7% C 0.074 H 244.2°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#103D5D
RGB	rgb(16, 61, 93)
HSL	hsl(205, 71%, 21%)
HSV	hsv(205, 83%, 36%)
CMYK	cmyk(82.8%, 34.4%, 0%, 63.5%)
CIE-LAB	lab(24.44, -2.49, -23.33)
CIE-LCH	lch(24.44, 23.46, 263.91°)
OKLab	oklab(34.71% -0.032 -0.0662)
OKLCH	oklch(34.71% 0.074 244.2)
XYZ	xyz(3.8574, 4.2375, 10.9684)
Luminance	0.0424 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103D5D #5D3010

analogous

#105D57 #103D5D #10175D

triadic

#103D5D #5D103D #3D5D10

tetradic

#103D5D #57105D #5D3010 #175D10

square

#103D5D #57105D #5D3010 #175D10

split-complementary

#103D5D #5D1017 #5D5710

monochromatic

#04111A #071B29 #103D5D #195F91 #2282C5

Accessibility & contrast

On white

11.37

#103D5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#103D5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103D5D

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103D5D	#FFFFFF	#000000	##FFFFFF
##103D5D	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3E5E

Deuteranopia (green-blind)

#23375C

Tritanopia (blue-blind)

#004548

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #103d5d;
/* rgb */ color: rgb(16, 61, 93);
/* oklch */ color: oklch(34.7% 0.074 244.2);

Tailwind

colors: {
  custom: {
    50: '#5c728b',
    500: '#103d5d',
    950: '#000000',
  },
}

SCSS

$custom: #103d5d;
$custom-light: #5c728b;
$custom-dark: #000000;

JSON

{
  "hex": "#103d5d",
  "rgb": {
    "r": 16,
    "g": 61,
    "b": 93
  },
  "hsl": {
    "h": 204.935,
    "s": 70.642,
    "l": 21.373
  },
  "oklch": {
    "l": 0.34707,
    "c": 0.07355,
    "h": 244.2
  },
  "luminance": 0.04238
}

Semantic roles & 50–950 ramp

primary

#103D5D

secondary

#965C33

accent

#853AED

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070C

muted

#797A7D

Preview Lab

Preview with #103D5D

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

Preview Lab → · Contrast checker → · Palette generator →