#1A188D#1A188D

#1A188D is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.2% C 0.181 H 270.7°. Best body text is #FFFFFF at 13.47:1 contrast (WCAG AA passes).

Color values

HEX	#1A188D
RGB	rgb(26, 24, 141)
HSL	hsl(241, 71%, 32%)
HSV	hsv(241, 83%, 55%)
CMYK	cmyk(81.6%, 83%, 0%, 44.7%)
CIE-LAB	lab(19.20, 42.34, -62.49)
CIE-LCH	lch(19.20, 75.48, 304.12°)
OKLab	oklab(32.2% 0.0023 -0.1809)
OKLCH	oklch(32.2% 0.181 270.7)
XYZ	xyz(5.5587, 2.7953, 25.4407)
Luminance	0.0280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A188D #8B8D18

analogous

#18508D #1A188D #55188D

triadic

#1A188D #8D1A18 #188D1A

tetradic

#1A188D #8D1850 #8B8D18 #188D55

square

#1A188D #8D1850 #8B8D18 #188D55

split-complementary

#1A188D #8D5518 #508D18

monochromatic

#070624 #100F59 #1A188D #2421C1 #4341DF

Accessibility & contrast

On white

13.47

#1A188D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1A188D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A188D

13.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A188D	#FFFFFF	#000000	##FFFFFF
##1A188D	1.00	13.47	1.56	13.47
#FFFFFF	13.47	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003490

Deuteranopia (green-blind)

#00288B

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1a188d;
/* rgb */ color: rgb(26, 24, 141);
/* oklch */ color: oklch(32.2% 0.181 270.7);

Tailwind

colors: {
  custom: {
    50: '#6e58b0',
    500: '#1a188d',
    950: '#000000',
  },
}

SCSS

$custom: #1a188d;
$custom-light: #6e58b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a188d",
  "rgb": {
    "r": 26,
    "g": 24,
    "b": 141
  },
  "hsl": {
    "h": 241.026,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.32195,
    "c": 0.1809,
    "h": 270.7
  },
  "luminance": 0.02796
}

Semantic roles & 50–950 ramp

primary

#1A188D

secondary

#BDBF42

accent

#EE3AEB

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1A188D

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

Preview Lab → · Contrast checker → · Palette generator →