#0A404E#0A404E

#0A404E is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.5% C 0.058 H 220.1°. Best body text is #FFFFFF at 11.31:1 contrast (WCAG AA passes).

Color values

HEX	#0A404E
RGB	rgb(10, 64, 78)
HSL	hsl(192, 77%, 17%)
HSV	hsv(192, 87%, 31%)
CMYK	cmyk(87.2%, 17.9%, 0%, 69.4%)
CIE-LAB	lab(24.58, -11.25, -13.30)
CIE-LCH	lch(24.58, 17.42, 229.77°)
OKLab	oklab(34.53% -0.0442 -0.0372)
OKLCH	oklch(34.53% 0.058 220.1)
XYZ	xyz(3.3331, 4.2810, 7.8569)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A404E #4E180A

analogous

#0A4E3A #0A404E #0A1E4E

triadic

#0A404E #4E0A40 #404E0A

tetradic

#0A404E #3A0A4E #4E180A #1E4E0A

square

#0A404E #3A0A4E #4E180A #1E4E0A

split-complementary

#0A404E #4E0A1E #4E3A0A

monochromatic

#03161B #03161B #0A404E #116D84 #1899BA

Accessibility & contrast

On white

11.31

#0A404E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#0A404E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A404E

11.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A404E	#FFFFFF	#000000	##FFFFFF
##0A404E	1.00	11.31	1.86	11.31
#FFFFFF	11.31	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373E4F

Deuteranopia (green-blind)

#2F384E

Tritanopia (blue-blind)

#004544

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #0a404e;
/* rgb */ color: rgb(10, 64, 78);
/* oklch */ color: oklch(34.5% 0.058 220.1);

Tailwind

colors: {
  custom: {
    50: '#57757f',
    500: '#0a404e',
    950: '#000000',
  },
}

SCSS

$custom: #0a404e;
$custom-light: #57757f;
$custom-dark: #000000;

JSON

{
  "hex": "#0a404e",
  "rgb": {
    "r": 10,
    "g": 64,
    "b": 78
  },
  "hsl": {
    "h": 192.353,
    "s": 77.273,
    "l": 17.255
  },
  "oklch": {
    "l": 0.34525,
    "c": 0.05783,
    "h": 220.1
  },
  "luminance": 0.04281
}

Semantic roles & 50–950 ramp

primary

#0A404E

secondary

#8B3D29

accent

#5B34F4

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #0A404E

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

Preview Lab → · Contrast checker → · Palette generator →