#0F2B5B#0F2B5B

#0F2B5B is a dark, moderate blue. Relative luminance 0.026; OKLCH L 29.9% C 0.093 H 260.4°. Best body text is #FFFFFF at 13.84:1 contrast (WCAG AA passes).

Color values

HEX	#0F2B5B
RGB	rgb(15, 43, 91)
HSL	hsl(218, 72%, 21%)
HSV	hsv(218, 84%, 36%)
CMYK	cmyk(83.5%, 52.7%, 0%, 64.3%)
CIE-LAB	lab(18.30, 9.28, -31.82)
CIE-LCH	lch(18.30, 33.14, 286.26°)
OKLab	oklab(29.87% -0.0154 -0.0915)
OKLCH	oklch(29.87% 0.093 260.4)
XYZ	xyz(2.9485, 2.5843, 10.2389)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F2B5B #5B3F0F

analogous

#0F515B #0F2B5B #190F5B

triadic

#0F2B5B #5B0F2B #2B5B0F

tetradic

#0F2B5B #5B0F51 #5B3F0F #0F5B19

square

#0F2B5B #5B0F51 #5B3F0F #0F5B19

split-complementary

#0F2B5B #5B190F #515B0F

monochromatic

#040C1A #061226 #0F2B5B #184490 #205DC4

Accessibility & contrast

On white

13.84

#0F2B5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#0F2B5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F2B5B

13.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F2B5B	#FFFFFF	#000000	##FFFFFF
##0F2B5B	1.00	13.84	1.52	13.84
#FFFFFF	13.84	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F305D

Deuteranopia (green-blind)

#00295A

Tritanopia (blue-blind)

#00373E

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #0f2b5b;
/* rgb */ color: rgb(15, 43, 91);
/* oklch */ color: oklch(29.9% 0.093 260.4);

Tailwind

colors: {
  custom: {
    50: '#5b638a',
    500: '#0f2b5b',
    950: '#000000',
  },
}

SCSS

$custom: #0f2b5b;
$custom-light: #5b638a;
$custom-dark: #000000;

JSON

{
  "hex": "#0f2b5b",
  "rgb": {
    "r": 15,
    "g": 43,
    "b": 91
  },
  "hsl": {
    "h": 217.895,
    "s": 71.698,
    "l": 20.784
  },
  "oklch": {
    "l": 0.29867,
    "c": 0.09276,
    "h": 260.4
  },
  "luminance": 0.02585
}

Semantic roles & 50–950 ramp

primary

#0F2B5B

secondary

#957031

accent

#AC39EE

background

#F5F5F8

surface

#E9EAF0

border

#C5C6CB

text

#04050C

muted

#79797D

Preview Lab

Preview with #0F2B5B

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

Preview Lab → · Contrast checker → · Palette generator →