#1B0F76#1B0F76

#1B0F76 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.4% C 0.160 H 274.4°. Best body text is #FFFFFF at 15.25:1 contrast (WCAG AA passes).

Color values

HEX	#1B0F76
RGB	rgb(27, 15, 118)
HSL	hsl(247, 77%, 26%)
HSV	hsv(247, 87%, 46%)
CMYK	cmyk(77.1%, 87.3%, 0%, 53.7%)
CIE-LAB	lab(14.86, 39.33, -55.11)
CIE-LCH	lch(14.86, 67.71, 305.51°)
OKLab	oklab(28.36% 0.0122 -0.1593)
OKLCH	oklch(28.36% 0.16 274.4)
XYZ	xyz(3.8918, 1.8823, 17.2942)
Luminance	0.0188 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0F76 #6A760F

analogous

#0F3676 #1B0F76 #4E0F76

triadic

#1B0F76 #761B0F #0F761B

tetradic

#1B0F76 #760F36 #6A760F #0F764E

square

#1B0F76 #760F36 #6A760F #0F764E

split-complementary

#1B0F76 #764E0F #36760F

monochromatic

#06031B #0F0840 #1B0F76 #2716AC #341DE2

Accessibility & contrast

On white

15.25

#1B0F76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1B0F76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0F76

15.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0F76	#FFFFFF	#000000	##FFFFFF
##1B0F76	1.00	15.25	1.38	15.25
#FFFFFF	15.25	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A79

Deuteranopia (green-blind)

#002174

Tritanopia (blue-blind)

#003144

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1b0f76;
/* rgb */ color: rgb(27, 15, 118);
/* oklch */ color: oklch(28.4% 0.160 274.4);

Tailwind

colors: {
  custom: {
    50: '#69529f',
    500: '#1b0f76',
    950: '#000000',
  },
}

SCSS

$custom: #1b0f76;
$custom-light: #69529f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0f76",
  "rgb": {
    "r": 27,
    "g": 15,
    "b": 118
  },
  "hsl": {
    "h": 246.99,
    "s": 77.444,
    "l": 26.078
  },
  "oklch": {
    "l": 0.28363,
    "c": 0.15979,
    "h": 274.4
  },
  "luminance": 0.01883
}

Semantic roles & 50–950 ramp

primary

#1B0F76

secondary

#9FAD33

accent

#F434DE

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07020F

muted

#7A787E

Preview Lab

Preview with #1B0F76

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

Preview Lab → · Contrast checker → · Palette generator →