#1A138C#1A138C

#1A138C is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.5% C 0.184 H 271.1°. Best body text is #FFFFFF at 13.85:1 contrast (WCAG AA passes).

Color values

HEX	#1A138C
RGB	rgb(26, 19, 140)
HSL	hsl(243, 76%, 31%)
HSV	hsv(243, 86%, 55%)
CMYK	cmyk(81.4%, 86.4%, 0%, 45.1%)
CIE-LAB	lab(18.27, 44.40, -63.42)
CIE-LCH	lch(18.27, 77.41, 305.00°)
OKLab	oklab(31.51% 0.0036 -0.1835)
OKLCH	oklch(31.51% 0.184 271.1)
XYZ	xyz(5.3909, 2.5782, 25.0194)
Luminance	0.0258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A138C #858C13

analogous

#13488C #1A138C #56138C

triadic

#1A138C #8C1A13 #138C1A

tetradic

#1A138C #8C1348 #858C13 #138C56

square

#1A138C #8C1348 #858C13 #138C56

split-complementary

#1A138C #8C5613 #488C13

monochromatic

#060420 #100C56 #1A138C #241AC2 #4036E4

Accessibility & contrast

On white

13.85

#1A138C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1A138C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A138C

13.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A138C	#FFFFFF	#000000	##FFFFFF
##1A138C	1.00	13.85	1.52	13.85
#FFFFFF	13.85	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328F

Deuteranopia (green-blind)

#00268A

Tritanopia (blue-blind)

#003B52

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1a138c;
/* rgb */ color: rgb(26, 19, 140);
/* oklch */ color: oklch(31.5% 0.184 271.1);

Tailwind

colors: {
  custom: {
    50: '#6e56af',
    500: '#1a138c',
    950: '#000000',
  },
}

SCSS

$custom: #1a138c;
$custom-light: #6e56af;
$custom-dark: #000000;

JSON

{
  "hex": "#1a138c",
  "rgb": {
    "r": 26,
    "g": 19,
    "b": 140
  },
  "hsl": {
    "h": 243.471,
    "s": 76.101,
    "l": 31.176
  },
  "oklch": {
    "l": 0.31511,
    "c": 0.18352,
    "h": 271.1
  },
  "luminance": 0.02579
}

Semantic roles & 50–950 ramp

primary

#1A138C

secondary

#B8C03B

accent

#F335E8

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #1A138C

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

Preview Lab → · Contrast checker → · Palette generator →