#0A3C4E#0A3C4E

#0A3C4E is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.4% C 0.059 H 227.6°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#0A3C4E
RGB	rgb(10, 60, 78)
HSL	hsl(196, 77%, 17%)
HSV	hsv(196, 87%, 31%)
CMYK	cmyk(87.2%, 23.1%, 0%, 69.4%)
CIE-LAB	lab(23.16, -8.75, -15.50)
CIE-LCH	lch(23.16, 17.80, 240.54°)
OKLab	oklab(33.38% -0.0398 -0.0436)
OKLCH	oklch(33.38% 0.059 227.6)
XYZ	xyz(3.1156, 3.8459, 7.7844)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3C4E #4E1C0A

analogous

#0A4E3E #0A3C4E #0A1A4E

triadic

#0A3C4E #4E0A3C #3C4E0A

tetradic

#0A3C4E #3E0A4E #4E1C0A #1A4E0A

square

#0A3C4E #3E0A4E #4E1C0A #1A4E0A

split-complementary

#0A3C4E #4E0A1A #4E3E0A

monochromatic

#03151B #03151B #0A3C4E #116684 #188FBA

Accessibility & contrast

On white

11.87

#0A3C4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#0A3C4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3C4E

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3C4E	#FFFFFF	#000000	##FFFFFF
##0A3C4E	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323B4F

Deuteranopia (green-blind)

#29344E

Tritanopia (blue-blind)

#004142

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #0a3c4e;
/* rgb */ color: rgb(10, 60, 78);
/* oklch */ color: oklch(33.4% 0.059 227.6);

Tailwind

colors: {
  custom: {
    50: '#57717f',
    500: '#0a3c4e',
    950: '#000000',
  },
}

SCSS

$custom: #0a3c4e;
$custom-light: #57717f;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3c4e",
  "rgb": {
    "r": 10,
    "g": 60,
    "b": 78
  },
  "hsl": {
    "h": 195.882,
    "s": 77.273,
    "l": 17.255
  },
  "oklch": {
    "l": 0.33382,
    "c": 0.05899,
    "h": 227.6
  },
  "luminance": 0.03846
}

Semantic roles & 50–950 ramp

primary

#0A3C4E

secondary

#8B4329

accent

#6734F4

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #0A3C4E

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

Preview Lab → · Contrast checker → · Palette generator →