#0A2A40#0A2A40

#0A2A40 is a dark, muted cyan. Relative luminance 0.021; OKLCH L 27.4% C 0.055 H 242.8°. Best body text is #FFFFFF at 14.81:1 contrast (WCAG AA passes).

Color values

HEX	#0A2A40
RGB	rgb(10, 42, 64)
HSL	hsl(204, 73%, 15%)
HSV	hsv(204, 84%, 25%)
CMYK	cmyk(84.4%, 34.4%, 0%, 74.9%)
CIE-LAB	lab(15.95, -2.56, -17.25)
CIE-LCH	lch(15.95, 17.44, 261.57°)
OKLab	oklab(27.41% -0.0251 -0.0488)
OKLCH	oklch(27.41% 0.055 242.8)
XYZ	xyz(1.8782, 2.0904, 5.1540)
Luminance	0.0209 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A2A40 #40200A

analogous

#0A403B #0A2A40 #0A0F40

triadic

#0A2A40 #400A2A #2A400A

tetradic

#0A2A40 #3B0A40 #40200A #0F400A

square

#0A2A40 #3B0A40 #40200A #0F400A

split-complementary

#0A2A40 #400A0F #403B0A

monochromatic

#04111A #04111A #0A2A40 #124D75 #1B6FAA

Accessibility & contrast

On white

14.81

#0A2A40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#0A2A40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2A40

14.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A2A40	#FFFFFF	#000000	##FFFFFF
##0A2A40	1.00	14.81	1.42	14.81
#FFFFFF	14.81	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#202A41

Deuteranopia (green-blind)

#182540

Tritanopia (blue-blind)

#002F32

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #0a2a40;
/* rgb */ color: rgb(10, 42, 64);
/* oklch */ color: oklch(27.4% 0.055 242.8);

Tailwind

colors: {
  custom: {
    50: '#526375',
    500: '#0a2a40',
    950: '#000000',
  },
}

SCSS

$custom: #0a2a40;
$custom-light: #526375;
$custom-dark: #000000;

JSON

{
  "hex": "#0a2a40",
  "rgb": {
    "r": 10,
    "g": 42,
    "b": 64
  },
  "hsl": {
    "h": 204.444,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.27406,
    "c": 0.05489,
    "h": 242.8
  },
  "luminance": 0.02091
}

Semantic roles & 50–950 ramp

primary

#0A2A40

secondary

#7D4B29

accent

#8338F0

background

#F4F5F7

surface

#E7EAED

border

#C3C6C8

text

#030508

muted

#78797B

Preview Lab

Preview with #0A2A40

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

Preview Lab → · Contrast checker → · Palette generator →