#1B1174#1B1174

#1B1174 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.3% C 0.156 H 274.5°. Best body text is #FFFFFF at 15.23:1 contrast (WCAG AA passes).

Color values

HEX	#1B1174
RGB	rgb(27, 17, 116)
HSL	hsl(246, 74%, 26%)
HSV	hsv(246, 85%, 45%)
CMYK	cmyk(76.7%, 85.3%, 0%, 54.5%)
CIE-LAB	lab(14.92, 37.74, -53.71)
CIE-LCH	lch(14.92, 65.64, 305.09°)
OKLab	oklab(28.34% 0.0121 -0.1553)
OKLCH	oklch(28.34% 0.156 274.5)
XYZ	xyz(3.8038, 1.8945, 16.6848)
Luminance	0.0190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1174 #6A7411

analogous

#113874 #1B1174 #4C1174

triadic

#1B1174 #741B11 #11741B

tetradic

#1B1174 #741138 #6A7411 #11744C

square

#1B1174 #741138 #6A7411 #11744C

split-complementary

#1B1174 #744C11 #387411

monochromatic

#06041B #0F093F #1B1174 #2719A9 #3421DE

Accessibility & contrast

On white

15.23

#1B1174 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1B1174 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1174

15.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1174	#FFFFFF	#000000	##FFFFFF
##1B1174	1.00	15.23	1.38	15.23
#FFFFFF	15.23	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A77

Deuteranopia (green-blind)

#002172

Tritanopia (blue-blind)

#003144

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1b1174;
/* rgb */ color: rgb(27, 17, 116);
/* oklch */ color: oklch(28.3% 0.156 274.5);

Tailwind

colors: {
  custom: {
    50: '#68539d',
    500: '#1b1174',
    950: '#000000',
  },
}

SCSS

$custom: #1b1174;
$custom-light: #68539d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1174",
  "rgb": {
    "r": 27,
    "g": 17,
    "b": 116
  },
  "hsl": {
    "h": 246.061,
    "s": 74.436,
    "l": 26.078
  },
  "oklch": {
    "l": 0.28335,
    "c": 0.15578,
    "h": 274.5
  },
  "luminance": 0.01895
}

Semantic roles & 50–950 ramp

primary

#1B1174

secondary

#9FAB36

accent

#F137DE

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1B1174

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

Preview Lab → · Contrast checker → · Palette generator →