#1A148C#1A148C

#1A148C is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.6% C 0.183 H 271.1°. Best body text is #FFFFFF at 13.79:1 contrast (WCAG AA passes).

Color values

HEX	#1A148C
RGB	rgb(26, 20, 140)
HSL	hsl(243, 75%, 31%)
HSV	hsv(243, 86%, 55%)
CMYK	cmyk(81.4%, 85.7%, 0%, 45.1%)
CIE-LAB	lab(18.42, 43.95, -63.16)
CIE-LCH	lch(18.42, 76.95, 304.83°)
OKLab	oklab(31.62% 0.0034 -0.1828)
OKLCH	oklch(31.62% 0.183 271.1)
XYZ	xyz(5.4082, 2.6128, 25.0251)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A148C #868C14

analogous

#144A8C #1A148C #56148C

triadic

#1A148C #8C1A14 #148C1A

tetradic

#1A148C #8C144A #868C14 #148C56

square

#1A148C #8C144A #868C14 #148C56

split-complementary

#1A148C #8C5614 #4A8C14

monochromatic

#060521 #100C56 #1A148C #241CC2 #4038E3

Accessibility & contrast

On white

13.79

#1A148C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1A148C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A148C

13.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A148C	#FFFFFF	#000000	##FFFFFF
##1A148C	1.00	13.79	1.52	13.79
#FFFFFF	13.79	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338F

Deuteranopia (green-blind)

#00278A

Tritanopia (blue-blind)

#003B52

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1a148c;
/* rgb */ color: rgb(26, 20, 140);
/* oklch */ color: oklch(31.6% 0.183 271.1);

Tailwind

colors: {
  custom: {
    50: '#6e56af',
    500: '#1a148c',
    950: '#000000',
  },
}

SCSS

$custom: #1a148c;
$custom-light: #6e56af;
$custom-dark: #000000;

JSON

{
  "hex": "#1a148c",
  "rgb": {
    "r": 26,
    "g": 20,
    "b": 140
  },
  "hsl": {
    "h": 243,
    "s": 75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31616,
    "c": 0.18279,
    "h": 271.1
  },
  "luminance": 0.02613
}

Semantic roles & 50–950 ramp

primary

#1A148C

secondary

#B9C03C

accent

#F236E8

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #1A148C

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

Preview Lab → · Contrast checker → · Palette generator →