#103D5E#103D5E

#103D5E is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.8% C 0.075 H 245.0°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#103D5E
RGB	rgb(16, 61, 94)
HSL	hsl(205, 71%, 22%)
HSV	hsv(205, 83%, 37%)
CMYK	cmyk(83%, 35.1%, 0%, 63.1%)
CIE-LAB	lab(24.50, -2.08, -23.89)
CIE-LCH	lch(24.50, 23.98, 265.04°)
OKLab	oklab(34.77% -0.0317 -0.0678)
OKLCH	oklch(34.77% 0.075 245)
XYZ	xyz(3.9020, 4.2553, 11.2032)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103D5E #5E3110

analogous

#105E58 #103D5E #10165E

triadic

#103D5E #5E103D #3D5E10

tetradic

#103D5E #58105E #5E3110 #165E10

square

#103D5E #58105E #5E3110 #165E10

split-complementary

#103D5E #5E1016 #5E5810

monochromatic

#04111A #071B2A #103D5E #195F92 #2281C7

Accessibility & contrast

On white

11.34

#103D5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#103D5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103D5E

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103D5E	#FFFFFF	#000000	##FFFFFF
##103D5E	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3E5F

Deuteranopia (green-blind)

#23375D

Tritanopia (blue-blind)

#004549

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #103d5e;
/* rgb */ color: rgb(16, 61, 94);
/* oklch */ color: oklch(34.8% 0.075 245.0);

Tailwind

colors: {
  custom: {
    50: '#5c728c',
    500: '#103d5e',
    950: '#000000',
  },
}

SCSS

$custom: #103d5e;
$custom-light: #5c728c;
$custom-dark: #000000;

JSON

{
  "hex": "#103d5e",
  "rgb": {
    "r": 16,
    "g": 61,
    "b": 94
  },
  "hsl": {
    "h": 205.385,
    "s": 70.909,
    "l": 21.569
  },
  "oklch": {
    "l": 0.34771,
    "c": 0.07488,
    "h": 245
  },
  "luminance": 0.04256
}

Semantic roles & 50–950 ramp

primary

#103D5E

secondary

#975D33

accent

#863AEE

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #103D5E

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

Preview Lab → · Contrast checker → · Palette generator →