#1A138F#1A138F

#1A138F is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.9% C 0.187 H 270.9°. Best body text is #FFFFFF at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#1A138F
RGB	rgb(26, 19, 143)
HSL	hsl(243, 77%, 32%)
HSV	hsv(243, 87%, 56%)
CMYK	cmyk(81.8%, 86.7%, 0%, 43.9%)
CIE-LAB	lab(18.66, 45.33, -64.64)
CIE-LCH	lch(18.66, 78.95, 305.04°)
OKLab	oklab(31.89% 0.0029 -0.187)
OKLCH	oklch(31.89% 0.187 270.9)
XYZ	xyz(5.6151, 2.6679, 26.2003)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A138F #888F13

analogous

#134A8F #1A138F #58138F

triadic

#1A138F #8F1A13 #138F1A

tetradic

#1A138F #8F134A #888F13 #138F58

square

#1A138F #8F134A #888F13 #138F58

split-complementary

#1A138F #8F5813 #4A8F13

monochromatic

#060523 #100C59 #1A138F #241AC5 #4238E5

Accessibility & contrast

On white

13.69

#1A138F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1A138F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A138F

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A138F	#FFFFFF	#000000	##FFFFFF
##1A138F	1.00	13.69	1.53	13.69
#FFFFFF	13.69	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003392

Deuteranopia (green-blind)

#00278D

Tritanopia (blue-blind)

#003C54

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1a138f;
/* rgb */ color: rgb(26, 19, 143);
/* oklch */ color: oklch(31.9% 0.187 270.9);

Tailwind

colors: {
  custom: {
    50: '#6f56b1',
    500: '#1a138f',
    950: '#000000',
  },
}

SCSS

$custom: #1a138f;
$custom-light: #6f56b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a138f",
  "rgb": {
    "r": 26,
    "g": 19,
    "b": 143
  },
  "hsl": {
    "h": 243.387,
    "s": 76.543,
    "l": 31.765
  },
  "oklch": {
    "l": 0.31892,
    "c": 0.18703,
    "h": 270.9
  },
  "luminance": 0.02669
}

Semantic roles & 50–950 ramp

primary

#1A138F

secondary

#BBC33B

accent

#F335E8

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1A138F

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

Preview Lab → · Contrast checker → · Palette generator →