#103F66#103F66

#103F66 is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.8% C 0.084 H 248.1°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#103F66
RGB	rgb(16, 63, 102)
HSL	hsl(207, 73%, 23%)
HSV	hsv(207, 84%, 40%)
CMYK	cmyk(84.3%, 38.2%, 0%, 60%)
CIE-LAB	lab(25.64, -0.09, -27.27)
CIE-LCH	lch(25.64, 27.27, 269.82°)
OKLab	oklab(35.82% -0.0312 -0.0777)
OKLCH	oklch(35.82% 0.084 248.1)
XYZ	xyz(4.3885, 4.6239, 13.2290)
Luminance	0.0462 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103F66 #663710

analogous

#106662 #103F66 #101466

triadic

#103F66 #66103F #3F6610

tetradic

#103F66 #621066 #663710 #146610

square

#103F66 #621066 #663710 #146610

split-complementary

#103F66 #661014 #666210

monochromatic

#04101A #081E31 #103F66 #18609B #2180D0

Accessibility & contrast

On white

10.91

#103F66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#103F66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103F66

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103F66	#FFFFFF	#000000	##FFFFFF
##103F66	1.00	10.91	1.92	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4168

Deuteranopia (green-blind)

#203965

Tritanopia (blue-blind)

#00484D

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #103f66;
/* rgb */ color: rgb(16, 63, 102);
/* oklch */ color: oklch(35.8% 0.084 248.1);

Tailwind

colors: {
  custom: {
    50: '#5e7392',
    500: '#103f66',
    950: '#000000',
  },
}

SCSS

$custom: #103f66;
$custom-light: #5e7392;
$custom-dark: #000000;

JSON

{
  "hex": "#103f66",
  "rgb": {
    "r": 16,
    "g": 63,
    "b": 102
  },
  "hsl": {
    "h": 207.209,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.35818,
    "c": 0.08371,
    "h": 248.1
  },
  "luminance": 0.04624
}

Semantic roles & 50–950 ramp

primary

#103F66

secondary

#9E6433

accent

#8B38F0

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05080D

muted

#797B7E

Preview Lab

Preview with #103F66

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

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