#0F284B#0F284B

#0F284B is a dark, moderate blue. Relative luminance 0.021; OKLCH L 27.8% C 0.072 H 257.4°. Best body text is #FFFFFF at 14.73:1 contrast (WCAG AA passes).

Color values

HEX	#0F284B
RGB	rgb(15, 40, 75)
HSL	hsl(215, 67%, 18%)
HSV	hsv(215, 80%, 29%)
CMYK	cmyk(80%, 46.7%, 0%, 70.6%)
CIE-LAB	lab(16.14, 4.51, -24.51)
CIE-LCH	lch(16.14, 24.92, 280.42°)
OKLab	oklab(27.83% -0.0157 -0.07)
OKLCH	oklch(27.83% 0.072 257.4)
XYZ	xyz(2.2253, 2.1269, 6.9485)
Luminance	0.0213 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F284B #4B320F

analogous

#0F464B #0F284B #140F4B

triadic

#0F284B #4B0F28 #284B0F

tetradic

#0F284B #4B0F46 #4B320F #0F4B14

square

#0F284B #4B0F46 #4B320F #0F4B14

split-complementary

#0F284B #4B140F #464B0F

monochromatic

#050E1A #050E1A #0F284B #19437E #235EB1

Accessibility & contrast

On white

14.73

#0F284B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#0F284B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F284B

14.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F284B	#FFFFFF	#000000	##FFFFFF
##0F284B	1.00	14.73	1.43	14.73
#FFFFFF	14.73	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172B4C

Deuteranopia (green-blind)

#0D264A

Tritanopia (blue-blind)

#003035

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #0f284b;
/* rgb */ color: rgb(15, 40, 75);
/* oklch */ color: oklch(27.8% 0.072 257.4);

Tailwind

colors: {
  custom: {
    50: '#57617d',
    500: '#0f284b',
    950: '#000000',
  },
}

SCSS

$custom: #0f284b;
$custom-light: #57617d;
$custom-dark: #000000;

JSON

{
  "hex": "#0f284b",
  "rgb": {
    "r": 15,
    "g": 40,
    "b": 75
  },
  "hsl": {
    "h": 215,
    "s": 66.667,
    "l": 17.647
  },
  "oklch": {
    "l": 0.27831,
    "c": 0.07178,
    "h": 257.4
  },
  "luminance": 0.02127
}

Semantic roles & 50–950 ramp

primary

#0F284B

secondary

#856230

accent

#A23EEA

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#030509

muted

#78797B

Preview Lab

Preview with #0F284B

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

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