#0F1551#0F1551

#0F1551 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 24.0% C 0.108 H 270.9°. Best body text is #FFFFFF at 16.85:1 contrast (WCAG AA passes).

Color values

HEX	#0F1551
RGB	rgb(15, 21, 81)
HSL	hsl(235, 69%, 19%)
HSV	hsv(235, 81%, 32%)
CMYK	cmyk(81.5%, 74.1%, 0%, 68.2%)
CIE-LAB	lab(10.79, 21.40, -37.29)
CIE-LCH	lch(10.79, 43.00, 299.85°)
OKLab	oklab(23.97% 0.0017 -0.1079)
OKLCH	oklch(23.97% 0.108 270.9)
XYZ	xyz(1.9499, 1.2318, 7.9180)
Luminance	0.0123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.69

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F1551 #514B0F

analogous

#0F3651 #0F1551 #2A0F51

triadic

#0F1551 #510F15 #15510F

tetradic

#0F1551 #510F36 #514B0F #0F512A

square

#0F1551 #510F36 #514B0F #0F512A

split-complementary

#0F1551 #512A0F #36510F

monochromatic

#05071A #05081D #0F1551 #192285 #2230B8

Accessibility & contrast

On white

16.85

#0F1551 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#0F1551 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F1551

16.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F1551	#FFFFFF	#000000	##FFFFFF
##0F1551	1.00	16.85	1.25	16.85
#FFFFFF	16.85	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002053

Deuteranopia (green-blind)

#001A50

Tritanopia (blue-blind)

#002531

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #0f1551;
/* rgb */ color: rgb(15, 21, 81);
/* oklch */ color: oklch(24.0% 0.108 270.9);

Tailwind

colors: {
  custom: {
    50: '#5a5283',
    500: '#0f1551',
    950: '#000000',
  },
}

SCSS

$custom: #0f1551;
$custom-light: #5a5283;
$custom-dark: #000000;

JSON

{
  "hex": "#0f1551",
  "rgb": {
    "r": 15,
    "g": 21,
    "b": 81
  },
  "hsl": {
    "h": 234.545,
    "s": 68.75,
    "l": 18.824
  },
  "oklch": {
    "l": 0.23966,
    "c": 0.1079,
    "h": 270.9
  },
  "luminance": 0.01232
}

Semantic roles & 50–950 ramp

primary

#0F1551

secondary

#8B8331

accent

#DC3CEC

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04020A

muted

#79787C

Preview Lab

Preview with #0F1551

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

Preview Lab → · Contrast checker → · Palette generator →