#1B0F63#1B0F63

#1B0F63 is a dark, vivid blue. Relative luminance 0.015; OKLCH L 26.0% C 0.136 H 277.7°. Best body text is #FFFFFF at 16.21:1 contrast (WCAG AA passes).

Color values

HEX	#1B0F63
RGB	rgb(27, 15, 99)
HSL	hsl(249, 74%, 22%)
HSV	hsv(249, 85%, 39%)
CMYK	cmyk(72.7%, 84.8%, 0%, 61.2%)
CIE-LAB	lab(12.45, 33.14, -46.66)
CIE-LCH	lch(12.45, 57.24, 305.39°)
OKLab	oklab(26% 0.0181 -0.1348)
OKLCH	oklch(26% 0.136 277.7)
XYZ	xyz(2.8742, 1.4753, 11.9352)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0F63 #57630F

analogous

#0F2D63 #1B0F63 #450F63

triadic

#1B0F63 #631B0F #0F631B

tetradic

#1B0F63 #630F2D #57630F #0F6345

square

#1B0F63 #630F2D #57630F #0F6345

split-complementary

#1B0F63 #63450F #2D630F

monochromatic

#07041B #0D072E #1B0F63 #291798 #381FCD

Accessibility & contrast

On white

16.21

#1B0F63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#1B0F63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0F63

16.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0F63	#FFFFFF	#000000	##FFFFFF
##1B0F63	1.00	16.21	1.30	16.21
#FFFFFF	16.21	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002465

Deuteranopia (green-blind)

#001D62

Tritanopia (blue-blind)

#002939

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #1b0f63;
/* rgb */ color: rgb(27, 15, 99);
/* oklch */ color: oklch(26.0% 0.136 277.7);

Tailwind

colors: {
  custom: {
    50: '#645090',
    500: '#1b0f63',
    950: '#000000',
  },
}

SCSS

$custom: #1b0f63;
$custom-light: #645090;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0f63",
  "rgb": {
    "r": 27,
    "g": 15,
    "b": 99
  },
  "hsl": {
    "h": 248.571,
    "s": 73.684,
    "l": 22.353
  },
  "oklch": {
    "l": 0.26002,
    "c": 0.13604,
    "h": 277.7
  },
  "luminance": 0.01476
}

Semantic roles & 50–950 ramp

primary

#1B0F63

secondary

#8D9C32

accent

#F037D6

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #1B0F63

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

Preview Lab → · Contrast checker → · Palette generator →