#0A3540#0A3540

#0A3540 is a dark, muted cyan. Relative luminance 0.030; OKLCH L 30.6% C 0.049 H 219.0°. Best body text is #FFFFFF at 13.16:1 contrast (WCAG AA passes).

Color values

HEX	#0A3540
RGB	rgb(10, 53, 64)
HSL	hsl(192, 73%, 15%)
HSV	hsv(192, 84%, 25%)
CMYK	cmyk(84.4%, 17.2%, 0%, 74.9%)
CIE-LAB	lab(19.97, -9.92, -11.03)
CIE-LCH	lch(19.97, 14.83, 228.03°)
OKLab	oklab(30.61% -0.0381 -0.0308)
OKLCH	oklch(30.61% 0.049 219)
XYZ	xyz(2.3233, 2.9806, 5.3024)
Luminance	0.0298 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3540 #40150A

analogous

#0A4030 #0A3540 #0A1A40

triadic

#0A3540 #400A35 #35400A

tetradic

#0A3540 #300A40 #40150A #1A400A

square

#0A3540 #300A40 #40150A #1A400A

split-complementary

#0A3540 #400A1A #40300A

monochromatic

#04161A #04161A #0A3540 #126175 #1B8DAA

Accessibility & contrast

On white

13.16

#0A3540 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#0A3540 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3540

13.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3540	#FFFFFF	#000000	##FFFFFF
##0A3540	1.00	13.16	1.60	13.16
#FFFFFF	13.16	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3341

Deuteranopia (green-blind)

#272E40

Tritanopia (blue-blind)

#003938

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #0a3540;
/* rgb */ color: rgb(10, 53, 64);
/* oklch */ color: oklch(30.6% 0.049 219.0);

Tailwind

colors: {
  custom: {
    50: '#536c74',
    500: '#0a3540',
    950: '#000000',
  },
}

SCSS

$custom: #0a3540;
$custom-light: #536c74;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3540",
  "rgb": {
    "r": 10,
    "g": 53,
    "b": 64
  },
  "hsl": {
    "h": 192.222,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.30605,
    "c": 0.04898,
    "h": 219
  },
  "luminance": 0.02981
}

Semantic roles & 50–950 ramp

primary

#0A3540

secondary

#7D3A29

accent

#5E38F0

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030708

muted

#787A7B

Preview Lab

Preview with #0A3540

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

Preview Lab → · Contrast checker → · Palette generator →