#1B0F64#1B0F64

#1B0F64 is a dark, vivid blue. Relative luminance 0.015; OKLCH L 26.1% C 0.137 H 277.4°. Best body text is #FFFFFF at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#1B0F64
RGB	rgb(27, 15, 100)
HSL	hsl(248, 74%, 23%)
HSV	hsv(248, 85%, 39%)
CMYK	cmyk(73%, 85%, 0%, 60.8%)
CIE-LAB	lab(12.57, 33.48, -47.13)
CIE-LCH	lch(12.57, 57.81, 305.39°)
OKLab	oklab(26.12% 0.0178 -0.1362)
OKLCH	oklch(26.12% 0.137 277.4)
XYZ	xyz(2.9223, 1.4945, 12.1886)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0F64 #58640F

analogous

#0F2D64 #1B0F64 #460F64

triadic

#1B0F64 #641B0F #0F641B

tetradic

#1B0F64 #640F2D #58640F #0F6446

square

#1B0F64 #640F2D #58640F #0F6446

split-complementary

#1B0F64 #64460F #2D640F

monochromatic

#07041B #0D072F #1B0F64 #291799 #381FCE

Accessibility & contrast

On white

16.17

#1B0F64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#1B0F64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0F64

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0F64	#FFFFFF	#000000	##FFFFFF
##1B0F64	1.00	16.17	1.30	16.17
#FFFFFF	16.17	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002466

Deuteranopia (green-blind)

#001D63

Tritanopia (blue-blind)

#00293A

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #1b0f64;
/* rgb */ color: rgb(27, 15, 100);
/* oklch */ color: oklch(26.1% 0.137 277.4);

Tailwind

colors: {
  custom: {
    50: '#645091',
    500: '#1b0f64',
    950: '#000000',
  },
}

SCSS

$custom: #1b0f64;
$custom-light: #645091;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0f64",
  "rgb": {
    "r": 27,
    "g": 15,
    "b": 100
  },
  "hsl": {
    "h": 248.471,
    "s": 73.913,
    "l": 22.549
  },
  "oklch": {
    "l": 0.26124,
    "c": 0.13732,
    "h": 277.4
  },
  "luminance": 0.01495
}

Semantic roles & 50–950 ramp

primary

#1B0F64

secondary

#8E9D32

accent

#F137D6

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #1B0F64

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

Preview Lab → · Contrast checker → · Palette generator →