#103A5C#103A5C

#103A5C is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.8% C 0.075 H 247.1°. Best body text is #FFFFFF at 11.79:1 contrast (WCAG AA passes).

Color values

HEX	#103A5C
RGB	rgb(16, 58, 92)
HSL	hsl(207, 70%, 21%)
HSV	hsv(207, 83%, 36%)
CMYK	cmyk(82.6%, 37%, 0%, 63.9%)
CIE-LAB	lab(23.37, -0.87, -24.38)
CIE-LCH	lch(23.37, 24.39, 267.95°)
OKLab	oklab(33.84% -0.0292 -0.0693)
OKLCH	oklch(33.84% 0.075 247.1)
XYZ	xyz(3.6578, 3.9085, 10.6848)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103A5C #5C3210

analogous

#105C58 #103A5C #10145C

triadic

#103A5C #5C103A #3A5C10

tetradic

#103A5C #58105C #5C3210 #145C10

square

#103A5C #58105C #5C3210 #145C10

split-complementary

#103A5C #5C1014 #5C5810

monochromatic

#05101A #071928 #103A5C #195B90 #227CC4

Accessibility & contrast

On white

11.79

#103A5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#103A5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103A5C

11.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103A5C	#FFFFFF	#000000	##FFFFFF
##103A5C	1.00	11.79	1.78	11.79
#FFFFFF	11.79	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3C5D

Deuteranopia (green-blind)

#1F355B

Tritanopia (blue-blind)

#004246

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #103a5c;
/* rgb */ color: rgb(16, 58, 92);
/* oklch */ color: oklch(33.8% 0.075 247.1);

Tailwind

colors: {
  custom: {
    50: '#5b6f8a',
    500: '#103a5c',
    950: '#000000',
  },
}

SCSS

$custom: #103a5c;
$custom-light: #5b6f8a;
$custom-dark: #000000;

JSON

{
  "hex": "#103a5c",
  "rgb": {
    "r": 16,
    "g": 58,
    "b": 92
  },
  "hsl": {
    "h": 206.842,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.33841,
    "c": 0.07521,
    "h": 247.1
  },
  "luminance": 0.03909
}

Semantic roles & 50–950 ramp

primary

#103A5C

secondary

#955F33

accent

#8B3BED

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070C

muted

#797A7D

Preview Lab

Preview with #103A5C

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

Preview Lab → · Contrast checker → · Palette generator →