#103A4B#103A4B

#103A4B is a dark, muted cyan. Relative luminance 0.036; OKLCH L 32.8% C 0.054 H 228.9°. Best body text is #FFFFFF at 12.15:1 contrast (WCAG AA passes).

Color values

HEX	#103A4B
RGB	rgb(16, 58, 75)
HSL	hsl(197, 65%, 18%)
HSV	hsv(197, 79%, 29%)
CMYK	cmyk(78.7%, 22.7%, 0%, 70.6%)
CIE-LAB	lab(22.46, -7.82, -14.57)
CIE-LCH	lch(22.46, 16.54, 241.79°)
OKLab	oklab(32.82% -0.0356 -0.0409)
OKLCH	oklch(32.82% 0.054 228.9)
XYZ	xyz(2.9962, 3.6439, 7.2007)
Luminance	0.0364 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103A4B #4B2110

analogous

#104B3E #103A4B #101C4B

triadic

#103A4B #4B103A #3A4B10

tetradic

#103A4B #3E104B #4B2110 #1C4B10

square

#103A4B #3E104B #4B2110 #1C4B10

split-complementary

#103A4B #4B101C #4B3E10

monochromatic

#051419 #051419 #103A4B #1B617D #2688B0

Accessibility & contrast

On white

12.15

#103A4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#103A4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103A4B

12.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103A4B	#FFFFFF	#000000	##FFFFFF
##103A4B	1.00	12.15	1.73	12.15
#FFFFFF	12.15	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31394C

Deuteranopia (green-blind)

#29334B

Tritanopia (blue-blind)

#003F40

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #103a4b;
/* rgb */ color: rgb(16, 58, 75);
/* oklch */ color: oklch(32.8% 0.054 228.9);

Tailwind

colors: {
  custom: {
    50: '#58707d',
    500: '#103a4b',
    950: '#000000',
  },
}

SCSS

$custom: #103a4b;
$custom-light: #58707d;
$custom-dark: #000000;

JSON

{
  "hex": "#103a4b",
  "rgb": {
    "r": 16,
    "g": 58,
    "b": 75
  },
  "hsl": {
    "h": 197.288,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.32821,
    "c": 0.05422,
    "h": 228.9
  },
  "luminance": 0.03644
}

Semantic roles & 50–950 ramp

primary

#103A4B

secondary

#854A32

accent

#7040E8

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #103A4B

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

Preview Lab → · Contrast checker → · Palette generator →