#103A5E#103A5E

#103A5E is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 34.0% C 0.078 H 248.5°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#103A5E
RGB	rgb(16, 58, 94)
HSL	hsl(208, 71%, 22%)
HSV	hsv(208, 83%, 37%)
CMYK	cmyk(83%, 38.3%, 0%, 63.1%)
CIE-LAB	lab(23.49, -0.03, -25.49)
CIE-LCH	lch(23.49, 25.49, 269.92°)
OKLab	oklab(33.97% -0.0286 -0.0726)
OKLCH	oklch(33.97% 0.078 248.5)
XYZ	xyz(3.7464, 3.9440, 11.1513)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103A5E #5E3410

analogous

#105E5B #103A5E #10135E

triadic

#103A5E #5E103A #3A5E10

tetradic

#103A5E #5B105E #5E3410 #135E10

square

#103A5E #5B105E #5E3410 #135E10

split-complementary

#103A5E #5E1013 #5E5B10

monochromatic

#04101A #071A2A #103A5E #195A92 #227BC7

Accessibility & contrast

On white

11.74

#103A5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#103A5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103A5E

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103A5E	#FFFFFF	#000000	##FFFFFF
##103A5E	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293C5F

Deuteranopia (green-blind)

#1E355D

Tritanopia (blue-blind)

#004347

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #103a5e;
/* rgb */ color: rgb(16, 58, 94);
/* oklch */ color: oklch(34.0% 0.078 248.5);

Tailwind

colors: {
  custom: {
    50: '#5c6f8c',
    500: '#103a5e',
    950: '#000000',
  },
}

SCSS

$custom: #103a5e;
$custom-light: #5c6f8c;
$custom-dark: #000000;

JSON

{
  "hex": "#103a5e",
  "rgb": {
    "r": 16,
    "g": 58,
    "b": 94
  },
  "hsl": {
    "h": 207.692,
    "s": 70.909,
    "l": 21.569
  },
  "oklch": {
    "l": 0.33973,
    "c": 0.078,
    "h": 248.5
  },
  "luminance": 0.03944
}

Semantic roles & 50–950 ramp

primary

#103A5E

secondary

#976133

accent

#8D3AEE

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070C

muted

#797A7D

Preview Lab

Preview with #103A5E

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

Preview Lab → · Contrast checker → · Palette generator →