#103C5D#103C5D

#103C5D is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.075 H 245.4°. Best body text is #FFFFFF at 11.50:1 contrast (WCAG AA passes).

Color values

HEX	#103C5D
RGB	rgb(16, 60, 93)
HSL	hsl(206, 71%, 21%)
HSV	hsv(206, 83%, 36%)
CMYK	cmyk(82.8%, 35.5%, 0%, 63.5%)
CIE-LAB	lab(24.10, -1.82, -23.87)
CIE-LCH	lch(24.10, 23.94, 265.65°)
OKLab	oklab(34.44% -0.031 -0.0678)
OKLCH	oklch(34.44% 0.075 245.4)
XYZ	xyz(3.8046, 4.1317, 10.9508)
Luminance	0.0413 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103C5D #5D3110

analogous

#105D58 #103C5D #10165D

triadic

#103C5D #5D103C #3C5D10

tetradic

#103C5D #58105D #5D3110 #165D10

square

#103C5D #58105D #5D3110 #165D10

split-complementary

#103C5D #5D1016 #5D5810

monochromatic

#04111A #071A29 #103C5D #195E91 #227FC5

Accessibility & contrast

On white

11.50

#103C5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#103C5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103C5D

11.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103C5D	#FFFFFF	#000000	##FFFFFF
##103C5D	1.00	11.50	1.83	11.50
#FFFFFF	11.50	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3D5E

Deuteranopia (green-blind)

#22365C

Tritanopia (blue-blind)

#004448

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #103c5d;
/* rgb */ color: rgb(16, 60, 93);
/* oklch */ color: oklch(34.4% 0.075 245.4);

Tailwind

colors: {
  custom: {
    50: '#5c718b',
    500: '#103c5d',
    950: '#000000',
  },
}

SCSS

$custom: #103c5d;
$custom-light: #5c718b;
$custom-dark: #000000;

JSON

{
  "hex": "#103c5d",
  "rgb": {
    "r": 16,
    "g": 60,
    "b": 93
  },
  "hsl": {
    "h": 205.714,
    "s": 70.642,
    "l": 21.373
  },
  "oklch": {
    "l": 0.3444,
    "c": 0.07453,
    "h": 245.4
  },
  "luminance": 0.04132
}

Semantic roles & 50–950 ramp

primary

#103C5D

secondary

#965D33

accent

#873AED

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070C

muted

#797A7D

Preview Lab

Preview with #103C5D

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

Preview Lab → · Contrast checker → · Palette generator →