#0B434F#0B434F

#0B434F is a dark, muted cyan. Relative luminance 0.046; OKLCH L 35.5% C 0.058 H 216.1°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#0B434F
RGB	rgb(11, 67, 79)
HSL	hsl(191, 76%, 18%)
HSV	hsv(191, 86%, 31%)
CMYK	cmyk(86.1%, 15.2%, 0%, 69%)
CIE-LAB	lab(25.71, -12.57, -12.22)
CIE-LCH	lch(25.71, 17.53, 224.19°)
OKLab	oklab(35.46% -0.0467 -0.0341)
OKLCH	oklch(35.46% 0.058 216.1)
XYZ	xyz(3.5558, 4.6495, 8.1057)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B434F #4F170B

analogous

#0B4F39 #0B434F #0B214F

triadic

#0B434F #4F0B43 #434F0B

tetradic

#0B434F #390B4F #4F170B #214F0B

square

#0B434F #390B4F #4F170B #214F0B

split-complementary

#0B434F #4F0B21 #4F390B

monochromatic

#04171B #04171B #0B434F #127185 #1A9EBA

Accessibility & contrast

On white

10.88

#0B434F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#0B434F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B434F

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B434F	#FFFFFF	#000000	##FFFFFF
##0B434F	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B4150

Deuteranopia (green-blind)

#323A4F

Tritanopia (blue-blind)

#004747

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #0b434f;
/* rgb */ color: rgb(11, 67, 79);
/* oklch */ color: oklch(35.5% 0.058 216.1);

Tailwind

colors: {
  custom: {
    50: '#587780',
    500: '#0b434f',
    950: '#000000',
  },
}

SCSS

$custom: #0b434f;
$custom-light: #587780;
$custom-dark: #000000;

JSON

{
  "hex": "#0b434f",
  "rgb": {
    "r": 11,
    "g": 67,
    "b": 79
  },
  "hsl": {
    "h": 190.588,
    "s": 75.556,
    "l": 17.647
  },
  "oklch": {
    "l": 0.35457,
    "c": 0.05788,
    "h": 216.1
  },
  "luminance": 0.0465
}

Semantic roles & 50–950 ramp

primary

#0B434F

secondary

#8B3C2B

accent

#5736F2

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #0B434F

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

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