#1A108E#1A108E

#1A108E is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.5% C 0.188 H 271.1°. Best body text is #FFFFFF at 13.92:1 contrast (WCAG AA passes).

Color values

HEX	#1A108E
RGB	rgb(26, 16, 142)
HSL	hsl(245, 80%, 31%)
HSV	hsv(245, 89%, 56%)
CMYK	cmyk(81.7%, 88.7%, 0%, 44.3%)
CIE-LAB	lab(18.11, 46.28, -64.93)
CIE-LCH	lch(18.11, 79.73, 305.48°)
OKLab	oklab(31.48% 0.0036 -0.1878)
OKLCH	oklch(31.48% 0.188 271.1)
XYZ	xyz(5.4921, 2.5426, 25.7872)
Luminance	0.0254 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A108E #848E10

analogous

#10458E #1A108E #59108E

triadic

#1A108E #8E1A10 #108E1A

tetradic

#1A108E #8E1045 #848E10 #108E59

square

#1A108E #8E1045 #848E10 #108E59

split-complementary

#1A108E #8E5910 #458E10

monochromatic

#060420 #100A57 #1A108E #2416C5 #3F31E8

Accessibility & contrast

On white

13.92

#1A108E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1A108E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A108E

13.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A108E	#FFFFFF	#000000	##FFFFFF
##1A108E	1.00	13.92	1.51	13.92
#FFFFFF	13.92	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003291

Deuteranopia (green-blind)

#00268C

Tritanopia (blue-blind)

#003B53

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1a108e;
/* rgb */ color: rgb(26, 16, 142);
/* oklch */ color: oklch(31.5% 0.188 271.1);

Tailwind

colors: {
  custom: {
    50: '#6f54b1',
    500: '#1a108e',
    950: '#000000',
  },
}

SCSS

$custom: #1a108e;
$custom-light: #6f54b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a108e",
  "rgb": {
    "r": 26,
    "g": 16,
    "b": 142
  },
  "hsl": {
    "h": 244.762,
    "s": 79.747,
    "l": 30.98
  },
  "oklch": {
    "l": 0.31477,
    "c": 0.18783,
    "h": 271.1
  },
  "luminance": 0.02543
}

Semantic roles & 50–950 ramp

primary

#1A108E

secondary

#B8C337

accent

#F632E7

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1A108E

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

Preview Lab → · Contrast checker → · Palette generator →