#1B0F7F#1B0F7F

#1B0F7F is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.5% C 0.171 H 273.2°. Best body text is #FFFFFF at 14.77:1 contrast (WCAG AA passes).

Color values

HEX	#1B0F7F
RGB	rgb(27, 15, 127)
HSL	hsl(246, 79%, 28%)
HSV	hsv(246, 88%, 50%)
CMYK	cmyk(78.7%, 88.2%, 0%, 50.2%)
CIE-LAB	lab(16.04, 42.15, -58.92)
CIE-LCH	lch(16.04, 72.44, 305.58°)
OKLab	oklab(29.51% 0.0094 -0.1704)
OKLCH	oklch(29.51% 0.171 273.2)
XYZ	xyz(4.4523, 2.1065, 20.2465)
Luminance	0.0211 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0F7F #737F0F

analogous

#0F3B7F #1B0F7F #530F7F

triadic

#1B0F7F #7F1B0F #0F7F1B

tetradic

#1B0F7F #7F0F3B #737F0F #0F7F53

square

#1B0F7F #7F0F3B #737F0F #0F7F53

split-complementary

#1B0F7F #7F530F #3B7F0F

monochromatic

#06031B #0F0948 #1B0F7F #2715B6 #3823E5

Accessibility & contrast

On white

14.77

#1B0F7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#1B0F7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0F7F

14.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0F7F	#FFFFFF	#000000	##FFFFFF
##1B0F7F	1.00	14.77	1.42	14.77
#FFFFFF	14.77	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D82

Deuteranopia (green-blind)

#00227D

Tritanopia (blue-blind)

#00344A

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1b0f7f;
/* rgb */ color: rgb(27, 15, 127);
/* oklch */ color: oklch(29.5% 0.171 273.2);

Tailwind

colors: {
  custom: {
    50: '#6c53a5',
    500: '#1b0f7f',
    950: '#000000',
  },
}

SCSS

$custom: #1b0f7f;
$custom-light: #6c53a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0f7f",
  "rgb": {
    "r": 27,
    "g": 15,
    "b": 127
  },
  "hsl": {
    "h": 246.429,
    "s": 78.873,
    "l": 27.843
  },
  "oklch": {
    "l": 0.2951,
    "c": 0.17062,
    "h": 273.2
  },
  "luminance": 0.02107
}

Semantic roles & 50–950 ramp

primary

#1B0F7F

secondary

#A8B534

accent

#F532E0

background

#F7F4FA

surface

#EDE7F4

border

#C8C3CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1B0F7F

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

Preview Lab → · Contrast checker → · Palette generator →