#1A188C#1A188C

#1A188C is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.1% C 0.180 H 270.8°. Best body text is #FFFFFF at 13.52:1 contrast (WCAG AA passes).

Color values

HEX	#1A188C
RGB	rgb(26, 24, 140)
HSL	hsl(241, 71%, 32%)
HSV	hsv(241, 83%, 55%)
CMYK	cmyk(81.4%, 82.9%, 0%, 45.1%)
CIE-LAB	lab(19.08, 42.01, -62.07)
CIE-LCH	lch(19.08, 74.95, 304.09°)
OKLab	oklab(32.07% 0.0025 -0.1797)
OKLCH	oklch(32.07% 0.18 270.8)
XYZ	xyz(5.4847, 2.7657, 25.0506)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A188C #8A8C18

analogous

#18508C #1A188C #54188C

triadic

#1A188C #8C1A18 #188C1A

tetradic

#1A188C #8C1850 #8A8C18 #188C54

square

#1A188C #8C1850 #8A8C18 #188C54

split-complementary

#1A188C #8C5418 #508C18

monochromatic

#070624 #100F58 #1A188C #2421C0 #4340DE

Accessibility & contrast

On white

13.52

#1A188C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1A188C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A188C

13.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A188C	#FFFFFF	#000000	##FFFFFF
##1A188C	1.00	13.52	1.55	13.52
#FFFFFF	13.52	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348F

Deuteranopia (green-blind)

#00288A

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1a188c;
/* rgb */ color: rgb(26, 24, 140);
/* oklch */ color: oklch(32.1% 0.180 270.8);

Tailwind

colors: {
  custom: {
    50: '#6e58af',
    500: '#1a188c',
    950: '#000000',
  },
}

SCSS

$custom: #1a188c;
$custom-light: #6e58af;
$custom-dark: #000000;

JSON

{
  "hex": "#1a188c",
  "rgb": {
    "r": 26,
    "g": 24,
    "b": 140
  },
  "hsl": {
    "h": 241.034,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.32072,
    "c": 0.1797,
    "h": 270.8
  },
  "luminance": 0.02766
}

Semantic roles & 50–950 ramp

primary

#1A188C

secondary

#BDBF41

accent

#ED3AEA

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #1A188C

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

Preview Lab → · Contrast checker → · Palette generator →