#0F3F58#0F3F58

#0F3F58 is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 34.9% C 0.066 H 236.4°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#0F3F58
RGB	rgb(15, 63, 88)
HSL	hsl(201, 71%, 20%)
HSV	hsv(201, 83%, 35%)
CMYK	cmyk(83%, 28.4%, 0%, 65.5%)
CIE-LAB	lab(24.83, -6.00, -19.46)
CIE-LCH	lch(24.83, 20.37, 252.88°)
OKLab	oklab(34.92% -0.0365 -0.0549)
OKLCH	oklch(34.92% 0.066 236.4)
XYZ	xyz(3.7353, 4.3607, 9.8755)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3F58 #58280F

analogous

#0F584C #0F3F58 #0F1A58

triadic

#0F3F58 #580F3F #3F580F

tetradic

#0F3F58 #4C0F58 #58280F #1A580F

square

#0F3F58 #4C0F58 #58280F #1A580F

split-complementary

#0F3F58 #580F1A #584C0F

monochromatic

#04131A #061A24 #0F3F58 #18648C #218AC1

Accessibility & contrast

On white

11.22

#0F3F58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#0F3F58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3F58

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3F58	#FFFFFF	#000000	##FFFFFF
##0F3F58	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333F59

Deuteranopia (green-blind)

#293858

Tritanopia (blue-blind)

#004548

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #0f3f58;
/* rgb */ color: rgb(15, 63, 88);
/* oklch */ color: oklch(34.9% 0.066 236.4);

Tailwind

colors: {
  custom: {
    50: '#5a7487',
    500: '#0f3f58',
    950: '#000000',
  },
}

SCSS

$custom: #0f3f58;
$custom-light: #5a7487;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3f58",
  "rgb": {
    "r": 15,
    "g": 63,
    "b": 88
  },
  "hsl": {
    "h": 200.548,
    "s": 70.874,
    "l": 20.196
  },
  "oklch": {
    "l": 0.34919,
    "c": 0.06598,
    "h": 236.4
  },
  "luminance": 0.04361
}

Semantic roles & 50–950 ramp

primary

#0F3F58

secondary

#925231

accent

#783AEE

background

#F5F7F8

surface

#E9EDEF

border

#C5C8CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #0F3F58

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

Preview Lab → · Contrast checker → · Palette generator →