#1B0F61#1B0F61

#1B0F61 is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.8% C 0.133 H 278.1°. Best body text is #FFFFFF at 16.31:1 contrast (WCAG AA passes).

Color values

HEX	#1B0F61
RGB	rgb(27, 15, 97)
HSL	hsl(249, 73%, 22%)
HSV	hsv(249, 85%, 38%)
CMYK	cmyk(72.2%, 84.5%, 0%, 62%)
CIE-LAB	lab(12.21, 32.48, -45.74)
CIE-LCH	lch(12.21, 56.10, 305.38°)
OKLab	oklab(25.76% 0.0187 -0.1321)
OKLCH	oklch(25.76% 0.133 278.1)
XYZ	xyz(2.7798, 1.4375, 11.4379)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0F61 #55610F

analogous

#0F2C61 #1B0F61 #440F61

triadic

#1B0F61 #611B0F #0F611B

tetradic

#1B0F61 #610F2C #55610F #0F6144

square

#1B0F61 #610F2C #55610F #0F6144

split-complementary

#1B0F61 #61440F #2C610F

monochromatic

#07041B #0C072C #1B0F61 #2A1796 #391FCB

Accessibility & contrast

On white

16.31

#1B0F61 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#1B0F61 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0F61

16.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0F61	#FFFFFF	#000000	##FFFFFF
##1B0F61	1.00	16.31	1.29	16.31
#FFFFFF	16.31	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002363

Deuteranopia (green-blind)

#001D60

Tritanopia (blue-blind)

#002838

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #1b0f61;
/* rgb */ color: rgb(27, 15, 97);
/* oklch */ color: oklch(25.8% 0.133 278.1);

Tailwind

colors: {
  custom: {
    50: '#64508f',
    500: '#1b0f61',
    950: '#000000',
  },
}

SCSS

$custom: #1b0f61;
$custom-light: #64508f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0f61",
  "rgb": {
    "r": 27,
    "g": 15,
    "b": 97
  },
  "hsl": {
    "h": 248.78,
    "s": 73.214,
    "l": 21.961
  },
  "oklch": {
    "l": 0.2576,
    "c": 0.13345,
    "h": 278.1
  },
  "luminance": 0.01438
}

Semantic roles & 50–950 ramp

primary

#1B0F61

secondary

#8B9A32

accent

#F038D5

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B0F61

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

Preview Lab → · Contrast checker → · Palette generator →