#103C4E#103C4E

#103C4E is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.6% C 0.056 H 229.4°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#103C4E
RGB	rgb(16, 60, 78)
HSL	hsl(197, 66%, 18%)
HSV	hsv(197, 79%, 31%)
CMYK	cmyk(79.5%, 23.1%, 0%, 69.4%)
CIE-LAB	lab(23.31, -7.92, -15.25)
CIE-LCH	lch(23.31, 17.18, 242.55°)
OKLab	oklab(33.55% -0.0367 -0.0428)
OKLCH	oklch(33.55% 0.056 229.4)
XYZ	xyz(3.2041, 3.8916, 7.7885)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103C4E #4E2210

analogous

#104E41 #103C4E #101D4E

triadic

#103C4E #4E103C #3C4E10

tetradic

#103C4E #41104E #4E2210 #1D4E10

square

#103C4E #41104E #4E2210 #1D4E10

split-complementary

#103C4E #4E101D #4E4110

monochromatic

#051419 #06151B #103C4E #1A6381 #258AB4

Accessibility & contrast

On white

11.81

#103C4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#103C4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103C4E

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103C4E	#FFFFFF	#000000	##FFFFFF
##103C4E	1.00	11.81	1.78	11.81
#FFFFFF	11.81	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333B4F

Deuteranopia (green-blind)

#2A354E

Tritanopia (blue-blind)

#004142

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #103c4e;
/* rgb */ color: rgb(16, 60, 78);
/* oklch */ color: oklch(33.6% 0.056 229.4);

Tailwind

colors: {
  custom: {
    50: '#58717f',
    500: '#103c4e',
    950: '#000000',
  },
}

SCSS

$custom: #103c4e;
$custom-light: #58717f;
$custom-dark: #000000;

JSON

{
  "hex": "#103c4e",
  "rgb": {
    "r": 16,
    "g": 60,
    "b": 78
  },
  "hsl": {
    "h": 197.419,
    "s": 65.957,
    "l": 18.431
  },
  "oklch": {
    "l": 0.3355,
    "c": 0.05637,
    "h": 229.4
  },
  "luminance": 0.03892
}

Semantic roles & 50–950 ramp

primary

#103C4E

secondary

#884B32

accent

#703FE9

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #103C4E

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

Preview Lab → · Contrast checker → · Palette generator →