#1A188E#1A188E

#1A188E is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.3% C 0.182 H 270.6°. Best body text is #FFFFFF at 13.42:1 contrast (WCAG AA passes).

Color values

HEX	#1A188E
RGB	rgb(26, 24, 142)
HSL	hsl(241, 71%, 33%)
HSV	hsv(241, 83%, 56%)
CMYK	cmyk(81.7%, 83.1%, 0%, 44.3%)
CIE-LAB	lab(19.33, 42.66, -62.90)
CIE-LCH	lch(19.33, 76.01, 304.15°)
OKLab	oklab(32.32% 0.002 -0.1821)
OKLCH	oklch(32.32% 0.182 270.6)
XYZ	xyz(5.6335, 2.8252, 25.8344)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A188E #8C8E18

analogous

#18518E #1A188E #55188E

triadic

#1A188E #8E1A18 #188E1A

tetradic

#1A188E #8E1851 #8C8E18 #188E55

square

#1A188E #8E1851 #8C8E18 #188E55

split-complementary

#1A188E #8E5518 #518E18

monochromatic

#070625 #100F5A #1A188E #2421C2 #4441DF

Accessibility & contrast

On white

13.42

#1A188E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1A188E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A188E

13.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A188E	#FFFFFF	#000000	##FFFFFF
##1A188E	1.00	13.42	1.57	13.42
#FFFFFF	13.42	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003591

Deuteranopia (green-blind)

#00298C

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1a188e;
/* rgb */ color: rgb(26, 24, 142);
/* oklch */ color: oklch(32.3% 0.182 270.6);

Tailwind

colors: {
  custom: {
    50: '#6e58b0',
    500: '#1a188e',
    950: '#000000',
  },
}

SCSS

$custom: #1a188e;
$custom-light: #6e58b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a188e",
  "rgb": {
    "r": 26,
    "g": 24,
    "b": 142
  },
  "hsl": {
    "h": 241.017,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.32318,
    "c": 0.1821,
    "h": 270.6
  },
  "luminance": 0.02826
}

Semantic roles & 50–950 ramp

primary

#1A188E

secondary

#BEC042

accent

#EE3AEB

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1A188E

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

Preview Lab → · Contrast checker → · Palette generator →