#1B118E#1B118E

#1B118E is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.6% C 0.187 H 271.4°. Best body text is #FFFFFF at 13.84:1 contrast (WCAG AA passes).

Color values

HEX	#1B118E
RGB	rgb(27, 17, 142)
HSL	hsl(245, 79%, 31%)
HSV	hsv(245, 88%, 56%)
CMYK	cmyk(81%, 88%, 0%, 44.3%)
CIE-LAB	lab(18.30, 45.92, -64.60)
CIE-LCH	lch(18.30, 79.26, 305.40°)
OKLab	oklab(31.63% 0.0047 -0.1868)
OKLCH	oklch(31.63% 0.187 271.4)
XYZ	xyz(5.5333, 2.5863, 25.7935)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B118E #848E11

analogous

#11458E #1B118E #59118E

triadic

#1B118E #8E1B11 #118E1B

tetradic

#1B118E #8E1145 #848E11 #118E59

square

#1B118E #8E1145 #848E11 #118E59

split-complementary

#1B118E #8E5911 #458E11

monochromatic

#060421 #110A57 #1B118E #2518C5 #4133E7

Accessibility & contrast

On white

13.84

#1B118E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1B118E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B118E

13.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B118E	#FFFFFF	#000000	##FFFFFF
##1B118E	1.00	13.84	1.52	13.84
#FFFFFF	13.84	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003391

Deuteranopia (green-blind)

#00268C

Tritanopia (blue-blind)

#003B53

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1b118e;
/* rgb */ color: rgb(27, 17, 142);
/* oklch */ color: oklch(31.6% 0.187 271.4);

Tailwind

colors: {
  custom: {
    50: '#6f55b0',
    500: '#1b118e',
    950: '#000000',
  },
}

SCSS

$custom: #1b118e;
$custom-light: #6f55b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b118e",
  "rgb": {
    "r": 27,
    "g": 17,
    "b": 142
  },
  "hsl": {
    "h": 244.8,
    "s": 78.616,
    "l": 31.176
  },
  "oklch": {
    "l": 0.31626,
    "c": 0.18691,
    "h": 271.4
  },
  "luminance": 0.02587
}

Semantic roles & 50–950 ramp

primary

#1B118E

secondary

#B7C238

accent

#F533E6

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1B118E

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

Preview Lab → · Contrast checker → · Palette generator →