#103F64#103F64

#103F64 is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.7% C 0.081 H 246.9°. Best body text is #FFFFFF at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#103F64
RGB	rgb(16, 63, 100)
HSL	hsl(206, 72%, 23%)
HSV	hsv(206, 84%, 39%)
CMYK	cmyk(84%, 37%, 0%, 60.8%)
CIE-LAB	lab(25.52, -0.92, -26.17)
CIE-LCH	lch(25.52, 26.19, 267.98°)
OKLab	oklab(35.69% -0.0318 -0.0745)
OKLCH	oklch(35.69% 0.081 246.9)
XYZ	xyz(4.2906, 4.5848, 12.7129)
Luminance	0.0459 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103F64 #643510

analogous

#10645F #103F64 #101564

triadic

#103F64 #64103F #3F6410

tetradic

#103F64 #5F1064 #643510 #156410

square

#103F64 #5F1064 #643510 #156410

split-complementary

#103F64 #641015 #645F10

monochromatic

#04111A #081E2F #103F64 #186099 #2181CE

Accessibility & contrast

On white

10.95

#103F64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#103F64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103F64

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103F64	#FFFFFF	#000000	##FFFFFF
##103F64	1.00	10.95	1.92	10.95
#FFFFFF	10.95	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4166

Deuteranopia (green-blind)

#223963

Tritanopia (blue-blind)

#00484C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #103f64;
/* rgb */ color: rgb(16, 63, 100);
/* oklch */ color: oklch(35.7% 0.081 246.9);

Tailwind

colors: {
  custom: {
    50: '#5d7390',
    500: '#103f64',
    950: '#000000',
  },
}

SCSS

$custom: #103f64;
$custom-light: #5d7390;
$custom-dark: #000000;

JSON

{
  "hex": "#103f64",
  "rgb": {
    "r": 16,
    "g": 63,
    "b": 100
  },
  "hsl": {
    "h": 206.429,
    "s": 72.414,
    "l": 22.745
  },
  "oklch": {
    "l": 0.35687,
    "c": 0.08097,
    "h": 246.9
  },
  "luminance": 0.04585
}

Semantic roles & 50–950 ramp

primary

#103F64

secondary

#9D6233

accent

#8939EF

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #103F64

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

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