#1B1075#1B1075

#1B1075 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.3% C 0.158 H 274.4°. Best body text is #FFFFFF at 15.24:1 contrast (WCAG AA passes).

Color values

HEX	#1B1075
RGB	rgb(27, 16, 117)
HSL	hsl(247, 76%, 26%)
HSV	hsv(247, 86%, 46%)
CMYK	cmyk(76.9%, 86.3%, 0%, 54.1%)
CIE-LAB	lab(14.89, 38.54, -54.42)
CIE-LCH	lch(14.89, 66.68, 305.31°)
OKLab	oklab(28.35% 0.0122 -0.1573)
OKLCH	oklch(28.35% 0.158 274.4)
XYZ	xyz(3.8471, 1.8876, 16.9878)
Luminance	0.0189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1075 #6A7510

analogous

#103775 #1B1075 #4D1075

triadic

#1B1075 #751B10 #10751B

tetradic

#1B1075 #751037 #6A7510 #10754D

square

#1B1075 #751037 #6A7510 #10754D

split-complementary

#1B1075 #754D10 #377510

monochromatic

#06041B #0F093F #1B1075 #2717AB #341FE0

Accessibility & contrast

On white

15.24

#1B1075 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1B1075 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1075

15.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1075	#FFFFFF	#000000	##FFFFFF
##1B1075	1.00	15.24	1.38	15.24
#FFFFFF	15.24	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A78

Deuteranopia (green-blind)

#002173

Tritanopia (blue-blind)

#003144

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1b1075;
/* rgb */ color: rgb(27, 16, 117);
/* oklch */ color: oklch(28.3% 0.158 274.4);

Tailwind

colors: {
  custom: {
    50: '#69529e',
    500: '#1b1075',
    950: '#000000',
  },
}

SCSS

$custom: #1b1075;
$custom-light: #69529e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1075",
  "rgb": {
    "r": 27,
    "g": 16,
    "b": 117
  },
  "hsl": {
    "h": 246.535,
    "s": 75.94,
    "l": 26.078
  },
  "oklch": {
    "l": 0.28346,
    "c": 0.15781,
    "h": 274.4
  },
  "luminance": 0.01888
}

Semantic roles & 50–950 ramp

primary

#1B1075

secondary

#9FAC35

accent

#F335DE

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1B1075

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

Preview Lab → · Contrast checker → · Palette generator →