#0F3771#0F3771

#0F3771 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.6% C 0.110 H 258.5°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#0F3771
RGB	rgb(15, 55, 113)
HSL	hsl(216, 77%, 25%)
HSV	hsv(216, 87%, 44%)
CMYK	cmyk(86.7%, 51.3%, 0%, 55.7%)
CIE-LAB	lab(23.76, 10.09, -37.34)
CIE-LCH	lch(23.76, 38.68, 285.12°)
OKLab	oklab(34.59% -0.0219 -0.1074)
OKLCH	oklch(34.59% 0.11 258.5)
XYZ	xyz(4.5427, 4.0256, 16.1572)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3771 #71490F

analogous

#0F6871 #0F3771 #180F71

triadic

#0F3771 #710F37 #37710F

tetradic

#0F3771 #710F68 #71490F #0F7118

square

#0F3771 #710F68 #71490F #0F7118

split-complementary

#0F3771 #71180F #68710F

monochromatic

#040D1B #081D3B #0F3771 #1651A7 #1D6CDD

Accessibility & contrast

On white

11.63

#0F3771 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#0F3771 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3771

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3771	#FFFFFF	#000000	##FFFFFF
##0F3771	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#143D73

Deuteranopia (green-blind)

#003470

Tritanopia (blue-blind)

#00454E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #0f3771;
/* rgb */ color: rgb(15, 55, 113);
/* oklch */ color: oklch(34.6% 0.110 258.5);

Tailwind

colors: {
  custom: {
    50: '#606d9a',
    500: '#0f3771',
    950: '#000000',
  },
}

SCSS

$custom: #0f3771;
$custom-light: #606d9a;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3771",
  "rgb": {
    "r": 15,
    "g": 55,
    "b": 113
  },
  "hsl": {
    "h": 215.51,
    "s": 76.563,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34586,
    "c": 0.10966,
    "h": 258.5
  },
  "luminance": 0.04026
}

Semantic roles & 50–950 ramp

primary

#0F3771

secondary

#A97933

accent

#A535F3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #0F3771

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

Preview Lab → · Contrast checker → · Palette generator →