#0F3A7F#0F3A7F

#0F3A7F is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.4% C 0.126 H 259.9°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#0F3A7F
RGB	rgb(15, 58, 127)
HSL	hsl(217, 79%, 28%)
HSV	hsv(217, 88%, 50%)
CMYK	cmyk(88.2%, 54.3%, 0%, 50.2%)
CIE-LAB	lab(25.74, 13.94, -43.00)
CIE-LCH	lch(25.74, 45.20, 287.96°)
OKLab	oklab(36.44% -0.0221 -0.124)
OKLCH	oklch(36.44% 0.126 259.9)
XYZ	xyz(5.5394, 4.6593, 20.6819)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3A7F #7F540F

analogous

#0F727F #0F3A7F #1C0F7F

triadic

#0F3A7F #7F0F3A #3A7F0F

tetradic

#0F3A7F #7F0F72 #7F540F #0F7F1C

square

#0F3A7F #7F0F72 #7F540F #0F7F1C

split-complementary

#0F3A7F #7F1C0F #727F0F

monochromatic

#030C1B #092148 #0F3A7F #1553B6 #236EE5

Accessibility & contrast

On white

10.87

#0F3A7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#0F3A7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3A7F

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3A7F	#FFFFFF	#000000	##FFFFFF
##0F3A7F	1.00	10.87	1.93	10.87
#FFFFFF	10.87	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#064281

Deuteranopia (green-blind)

#00387E

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #0f3a7f;
/* rgb */ color: rgb(15, 58, 127);
/* oklch */ color: oklch(36.4% 0.126 259.9);

Tailwind

colors: {
  custom: {
    50: '#646fa5',
    500: '#0f3a7f',
    950: '#000000',
  },
}

SCSS

$custom: #0f3a7f;
$custom-light: #646fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3a7f",
  "rgb": {
    "r": 15,
    "g": 58,
    "b": 127
  },
  "hsl": {
    "h": 216.964,
    "s": 78.873,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36444,
    "c": 0.126,
    "h": 259.9
  },
  "luminance": 0.0466
}

Semantic roles & 50–950 ramp

primary

#0F3A7F

secondary

#B58434

accent

#AB32F5

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #0F3A7F

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

Preview Lab → · Contrast checker → · Palette generator →