#1B117F#1B117F

#1B117F is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.7% C 0.169 H 273.0°. Best body text is #FFFFFF at 14.65:1 contrast (WCAG AA passes).

Color values

HEX	#1B117F
RGB	rgb(27, 17, 127)
HSL	hsl(245, 76%, 28%)
HSV	hsv(245, 87%, 50%)
CMYK	cmyk(78.7%, 86.6%, 0%, 50.2%)
CIE-LAB	lab(16.33, 41.27, -58.43)
CIE-LCH	lch(16.33, 71.53, 305.24°)
OKLab	oklab(29.71% 0.0089 -0.169)
OKLCH	oklch(29.71% 0.169 273)
XYZ	xyz(4.4819, 2.1657, 20.2564)
Luminance	0.0217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B117F #757F11

analogous

#113E7F #1B117F #52117F

triadic

#1B117F #7F1B11 #117F1B

tetradic

#1B117F #7F113E #757F11 #117F52

square

#1B117F #7F113E #757F11 #117F52

split-complementary

#1B117F #7F5211 #3E7F11

monochromatic

#06041B #100A49 #1B117F #2618B5 #3928E2

Accessibility & contrast

On white

14.65

#1B117F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1B117F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B117F

14.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B117F	#FFFFFF	#000000	##FFFFFF
##1B117F	1.00	14.65	1.43	14.65
#FFFFFF	14.65	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D82

Deuteranopia (green-blind)

#00237D

Tritanopia (blue-blind)

#00354A

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1b117f;
/* rgb */ color: rgb(27, 17, 127);
/* oklch */ color: oklch(29.7% 0.169 273.0);

Tailwind

colors: {
  custom: {
    50: '#6b53a5',
    500: '#1b117f',
    950: '#000000',
  },
}

SCSS

$custom: #1b117f;
$custom-light: #6b53a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b117f",
  "rgb": {
    "r": 27,
    "g": 17,
    "b": 127
  },
  "hsl": {
    "h": 245.455,
    "s": 76.389,
    "l": 28.235
  },
  "oklch": {
    "l": 0.29714,
    "c": 0.1692,
    "h": 273
  },
  "luminance": 0.02166
}

Semantic roles & 50–950 ramp

primary

#1B117F

secondary

#A9B537

accent

#F335E2

background

#F7F4FA

surface

#EDE8F4

border

#C8C4CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1B117F

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

Preview Lab → · Contrast checker → · Palette generator →