#0F3B58#0F3B58

#0F3B58 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.8% C 0.069 H 242.3°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#0F3B58
RGB	rgb(15, 59, 88)
HSL	hsl(204, 71%, 20%)
HSV	hsv(204, 83%, 35%)
CMYK	cmyk(83%, 33%, 0%, 65.5%)
CIE-LAB	lab(23.45, -3.36, -21.62)
CIE-LCH	lch(23.45, 21.88, 261.18°)
OKLab	oklab(33.83% -0.0322 -0.0613)
OKLCH	oklch(33.83% 0.069 242.3)
XYZ	xyz(3.5217, 3.9336, 9.8043)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3B58 #582C0F

analogous

#0F5851 #0F3B58 #0F1658

triadic

#0F3B58 #580F3B #3B580F

tetradic

#0F3B58 #510F58 #582C0F #16580F

square

#0F3B58 #510F58 #582C0F #16580F

split-complementary

#0F3B58 #580F16 #58510F

monochromatic

#04121A #061824 #0F3B58 #185E8C #2181C1

Accessibility & contrast

On white

11.75

#0F3B58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#0F3B58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3B58

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3B58	#FFFFFF	#000000	##FFFFFF
##0F3B58	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3C59

Deuteranopia (green-blind)

#233557

Tritanopia (blue-blind)

#004245

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #0f3b58;
/* rgb */ color: rgb(15, 59, 88);
/* oklch */ color: oklch(33.8% 0.069 242.3);

Tailwind

colors: {
  custom: {
    50: '#5a7087',
    500: '#0f3b58',
    950: '#000000',
  },
}

SCSS

$custom: #0f3b58;
$custom-light: #5a7087;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3b58",
  "rgb": {
    "r": 15,
    "g": 59,
    "b": 88
  },
  "hsl": {
    "h": 203.836,
    "s": 70.874,
    "l": 20.196
  },
  "oklch": {
    "l": 0.33825,
    "c": 0.06922,
    "h": 242.3
  },
  "luminance": 0.03934
}

Semantic roles & 50–950 ramp

primary

#0F3B58

secondary

#925731

accent

#813AEE

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #0F3B58

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

Preview Lab → · Contrast checker → · Palette generator →