#0F397F#0F397F

#0F397F is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.2% C 0.127 H 260.3°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#0F397F
RGB	rgb(15, 57, 127)
HSL	hsl(218, 79%, 28%)
HSV	hsv(218, 88%, 50%)
CMYK	cmyk(88.2%, 55.1%, 0%, 50.2%)
CIE-LAB	lab(25.44, 14.65, -43.49)
CIE-LCH	lch(25.44, 45.89, 288.62°)
OKLab	oklab(36.22% -0.0214 -0.1255)
OKLCH	oklch(36.22% 0.127 260.3)
XYZ	xyz(5.4895, 4.5594, 20.6653)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F397F #7F550F

analogous

#0F717F #0F397F #1D0F7F

triadic

#0F397F #7F0F39 #397F0F

tetradic

#0F397F #7F0F71 #7F550F #0F7F1D

square

#0F397F #7F0F71 #7F550F #0F7F1D

split-complementary

#0F397F #7F1D0F #717F0F

monochromatic

#030C1B #092048 #0F397F #1552B6 #236CE5

Accessibility & contrast

On white

10.98

#0F397F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#0F397F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F397F

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F397F	#FFFFFF	#000000	##FFFFFF
##0F397F	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#014281

Deuteranopia (green-blind)

#00387E

Tritanopia (blue-blind)

#004A56

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #0f397f;
/* rgb */ color: rgb(15, 57, 127);
/* oklch */ color: oklch(36.2% 0.127 260.3);

Tailwind

colors: {
  custom: {
    50: '#646ea5',
    500: '#0f397f',
    950: '#000000',
  },
}

SCSS

$custom: #0f397f;
$custom-light: #646ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#0f397f",
  "rgb": {
    "r": 15,
    "g": 57,
    "b": 127
  },
  "hsl": {
    "h": 217.5,
    "s": 78.873,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36215,
    "c": 0.1273,
    "h": 260.3
  },
  "luminance": 0.0456
}

Semantic roles & 50–950 ramp

primary

#0F397F

secondary

#B58534

accent

#AC32F5

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #0F397F

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

Preview Lab → · Contrast checker → · Palette generator →