#0F275C#0F275C

#0F275C is a dark, moderate blue. Relative luminance 0.023; OKLCH L 29.0% C 0.100 H 263.2°. Best body text is #FFFFFF at 14.33:1 contrast (WCAG AA passes).

Color values

HEX	#0F275C
RGB	rgb(15, 39, 92)
HSL	hsl(221, 72%, 21%)
HSV	hsv(221, 84%, 36%)
CMYK	cmyk(83.7%, 57.6%, 0%, 63.9%)
CIE-LAB	lab(17.11, 12.69, -34.40)
CIE-LCH	lch(17.11, 36.67, 290.25°)
OKLab	oklab(28.99% -0.0118 -0.0992)
OKLCH	oklch(28.99% 0.1 263.2)
XYZ	xyz(2.8536, 2.3250, 10.4215)
Luminance	0.0232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F275C #5C440F

analogous

#0F4D5C #0F275C #1D0F5C

triadic

#0F275C #5C0F27 #275C0F

tetradic

#0F275C #5C0F4D #5C440F #0F5C1D

square

#0F275C #5C0F4D #5C440F #0F5C1D

split-complementary

#0F275C #5C1D0F #4D5C0F

monochromatic

#040B1A #061127 #0F275C #183D91 #2054C5

Accessibility & contrast

On white

14.33

#0F275C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#0F275C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F275C

14.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F275C	#FFFFFF	#000000	##FFFFFF
##0F275C	1.00	14.33	1.47	14.33
#FFFFFF	14.33	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#012E5E

Deuteranopia (green-blind)

#00275B

Tritanopia (blue-blind)

#00343D

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #0f275c;
/* rgb */ color: rgb(15, 39, 92);
/* oklch */ color: oklch(29.0% 0.100 263.2);

Tailwind

colors: {
  custom: {
    50: '#5b608b',
    500: '#0f275c',
    950: '#000000',
  },
}

SCSS

$custom: #0f275c;
$custom-light: #5b608b;
$custom-dark: #000000;

JSON

{
  "hex": "#0f275c",
  "rgb": {
    "r": 15,
    "g": 39,
    "b": 92
  },
  "hsl": {
    "h": 221.299,
    "s": 71.963,
    "l": 20.98
  },
  "oklch": {
    "l": 0.28987,
    "c": 0.09987,
    "h": 263.2
  },
  "luminance": 0.02325
}

Semantic roles & 50–950 ramp

primary

#0F275C

secondary

#957631

accent

#B639EF

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#04040C

muted

#79797D

Preview Lab

Preview with #0F275C

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

Preview Lab → · Contrast checker → · Palette generator →