#103A55#103A55

#103A55 is a dark, moderate cyan. Relative luminance 0.038; OKLCH L 33.4% C 0.066 H 241.3°. Best body text is #FFFFFF at 11.94:1 contrast (WCAG AA passes).

Color values

HEX	#103A55
RGB	rgb(16, 58, 85)
HSL	hsl(203, 68%, 20%)
HSV	hsv(203, 81%, 33%)
CMYK	cmyk(81.2%, 31.8%, 0%, 66.7%)
CIE-LAB	lab(22.97, -3.79, -20.40)
CIE-LCH	lch(22.97, 20.75, 259.49°)
OKLab	oklab(33.4% -0.0316 -0.0577)
OKLCH	oklch(33.4% 0.066 241.3)
XYZ	xyz(3.3658, 3.7918, 9.1471)
Luminance	0.0379 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103A55 #552B10

analogous

#10554E #103A55 #101855

triadic

#103A55 #55103A #3A5510

tetradic

#103A55 #4E1055 #552B10 #185510

square

#103A55 #4E1055 #552B10 #185510

split-complementary

#103A55 #551018 #554E10

monochromatic

#05121A #061721 #103A55 #1A5D89 #2380BC

Accessibility & contrast

On white

11.94

#103A55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#103A55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103A55

11.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103A55	#FFFFFF	#000000	##FFFFFF
##103A55	1.00	11.94	1.76	11.94
#FFFFFF	11.94	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3A56

Deuteranopia (green-blind)

#243455

Tritanopia (blue-blind)

#004143

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #103a55;
/* rgb */ color: rgb(16, 58, 85);
/* oklch */ color: oklch(33.4% 0.066 241.3);

Tailwind

colors: {
  custom: {
    50: '#5a7085',
    500: '#103a55',
    950: '#000000',
  },
}

SCSS

$custom: #103a55;
$custom-light: #5a7085;
$custom-dark: #000000;

JSON

{
  "hex": "#103a55",
  "rgb": {
    "r": 16,
    "g": 58,
    "b": 85
  },
  "hsl": {
    "h": 203.478,
    "s": 68.317,
    "l": 19.804
  },
  "oklch": {
    "l": 0.33399,
    "c": 0.06581,
    "h": 241.3
  },
  "luminance": 0.03792
}

Semantic roles & 50–950 ramp

primary

#103A55

secondary

#8F5632

accent

#813DEB

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #103A55

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

Preview Lab → · Contrast checker → · Palette generator →