#0F3A4B#0F3A4B

#0F3A4B is a dark, muted cyan. Relative luminance 0.036; OKLCH L 32.8% C 0.055 H 228.5°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#0F3A4B
RGB	rgb(15, 58, 75)
HSL	hsl(197, 67%, 18%)
HSV	hsv(197, 80%, 29%)
CMYK	cmyk(80%, 22.7%, 0%, 70.6%)
CIE-LAB	lab(22.43, -7.98, -14.62)
CIE-LCH	lch(22.43, 16.66, 241.38°)
OKLab	oklab(32.79% -0.0362 -0.041)
OKLCH	oklch(32.79% 0.055 228.5)
XYZ	xyz(2.9795, 3.6353, 7.1999)
Luminance	0.0364 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3A4B #4B200F

analogous

#0F4B3E #0F3A4B #0F1C4B

triadic

#0F3A4B #4B0F3A #3A4B0F

tetradic

#0F3A4B #3E0F4B #4B200F #1C4B0F

square

#0F3A4B #3E0F4B #4B200F #1C4B0F

split-complementary

#0F3A4B #4B0F1C #4B3E0F

monochromatic

#05141A #05141A #0F3A4B #19617E #2389B1

Accessibility & contrast

On white

12.16

#0F3A4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#0F3A4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3A4B

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3A4B	#FFFFFF	#000000	##FFFFFF
##0F3A4B	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31394C

Deuteranopia (green-blind)

#29334B

Tritanopia (blue-blind)

#003F40

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #0f3a4b;
/* rgb */ color: rgb(15, 58, 75);
/* oklch */ color: oklch(32.8% 0.055 228.5);

Tailwind

colors: {
  custom: {
    50: '#57707d',
    500: '#0f3a4b',
    950: '#000000',
  },
}

SCSS

$custom: #0f3a4b;
$custom-light: #57707d;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3a4b",
  "rgb": {
    "r": 15,
    "g": 58,
    "b": 75
  },
  "hsl": {
    "h": 197,
    "s": 66.667,
    "l": 17.647
  },
  "oklch": {
    "l": 0.32789,
    "c": 0.05473,
    "h": 228.5
  },
  "luminance": 0.03636
}

Semantic roles & 50–950 ramp

primary

#0F3A4B

secondary

#854930

accent

#6F3EEA

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #0F3A4B

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

Preview Lab → · Contrast checker → · Palette generator →