#0F3F57#0F3F57

#0F3F57 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.9% C 0.065 H 235.3°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#0F3F57
RGB	rgb(15, 63, 87)
HSL	hsl(200, 71%, 20%)
HSV	hsv(200, 83%, 34%)
CMYK	cmyk(82.8%, 27.6%, 0%, 65.9%)
CIE-LAB	lab(24.78, -6.40, -18.89)
CIE-LCH	lch(24.78, 19.95, 251.27°)
OKLab	oklab(34.86% -0.0369 -0.0533)
OKLCH	oklch(34.86% 0.065 235.3)
XYZ	xyz(3.6941, 4.3443, 9.6588)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3F57 #57270F

analogous

#0F574B #0F3F57 #0F1B57

triadic

#0F3F57 #570F3F #3F570F

tetradic

#0F3F57 #4B0F57 #57270F #1B570F

square

#0F3F57 #4B0F57 #57270F #1B570F

split-complementary

#0F3F57 #570F1B #574B0F

monochromatic

#05131A #061923 #0F3F57 #18658B #218BBF

Accessibility & contrast

On white

11.24

#0F3F57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#0F3F57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3F57

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3F57	#FFFFFF	#000000	##FFFFFF
##0F3F57	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333F58

Deuteranopia (green-blind)

#2A3857

Tritanopia (blue-blind)

#004547

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #0f3f57;
/* rgb */ color: rgb(15, 63, 87);
/* oklch */ color: oklch(34.9% 0.065 235.3);

Tailwind

colors: {
  custom: {
    50: '#5a7486',
    500: '#0f3f57',
    950: '#000000',
  },
}

SCSS

$custom: #0f3f57;
$custom-light: #5a7486;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3f57",
  "rgb": {
    "r": 15,
    "g": 63,
    "b": 87
  },
  "hsl": {
    "h": 200,
    "s": 70.588,
    "l": 20
  },
  "oklch": {
    "l": 0.34861,
    "c": 0.06483,
    "h": 235.3
  },
  "luminance": 0.04345
}

Semantic roles & 50–950 ramp

primary

#0F3F57

secondary

#915131

accent

#763AED

background

#F5F7F8

surface

#E9EDEF

border

#C5C8CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #0F3F57

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

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