#0F3A5A#0F3A5A

#0F3A5A is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.7% C 0.073 H 245.3°. Best body text is #FFFFFF at 11.84:1 contrast (WCAG AA passes).

Color values

HEX	#0F3A5A
RGB	rgb(15, 58, 90)
HSL	hsl(206, 71%, 21%)
HSV	hsv(206, 83%, 35%)
CMYK	cmyk(83.3%, 35.6%, 0%, 64.7%)
CIE-LAB	lab(23.22, -1.85, -23.30)
CIE-LCH	lch(23.22, 23.37, 265.47°)
OKLab	oklab(33.68% -0.0305 -0.0662)
OKLCH	oklch(33.68% 0.073 245.3)
XYZ	xyz(3.5548, 3.8654, 10.2296)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3A5A #5A2F0F

analogous

#0F5A54 #0F3A5A #0F145A

triadic

#0F3A5A #5A0F3A #3A5A0F

tetradic

#0F3A5A #540F5A #5A2F0F #145A0F

square

#0F3A5A #540F5A #5A2F0F #145A0F

split-complementary

#0F3A5A #5A0F14 #5A540F

monochromatic

#04111A #061826 #0F3A5A #185C8E #207EC3

Accessibility & contrast

On white

11.84

#0F3A5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#0F3A5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3A5A

11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3A5A	#FFFFFF	#000000	##FFFFFF
##0F3A5A	1.00	11.84	1.77	11.84
#FFFFFF	11.84	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3B5B

Deuteranopia (green-blind)

#213459

Tritanopia (blue-blind)

#004245

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #0f3a5a;
/* rgb */ color: rgb(15, 58, 90);
/* oklch */ color: oklch(33.7% 0.073 245.3);

Tailwind

colors: {
  custom: {
    50: '#5a6f89',
    500: '#0f3a5a',
    950: '#000000',
  },
}

SCSS

$custom: #0f3a5a;
$custom-light: #5a6f89;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3a5a",
  "rgb": {
    "r": 15,
    "g": 58,
    "b": 90
  },
  "hsl": {
    "h": 205.6,
    "s": 71.429,
    "l": 20.588
  },
  "oklch": {
    "l": 0.3368,
    "c": 0.07284,
    "h": 245.3
  },
  "luminance": 0.03866
}

Semantic roles & 50–950 ramp

primary

#0F3A5A

secondary

#945B31

accent

#873AEE

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070B

muted

#797A7C

Preview Lab

Preview with #0F3A5A

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

Preview Lab → · Contrast checker → · Palette generator →