#1D138D#1D138D

#1D138D is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.8% C 0.184 H 272.2°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#1D138D
RGB	rgb(29, 19, 141)
HSL	hsl(245, 76%, 31%)
HSV	hsv(245, 87%, 55%)
CMYK	cmyk(79.4%, 86.5%, 0%, 44.7%)
CIE-LAB	lab(18.58, 44.87, -63.52)
CIE-LCH	lch(18.58, 77.77, 305.24°)
OKLab	oklab(31.81% 0.0072 -0.1837)
OKLCH	oklch(31.81% 0.184 272.2)
XYZ	xyz(5.5457, 2.6494, 25.4133)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D138D #838D13

analogous

#13468D #1D138D #5A138D

triadic

#1D138D #8D1D13 #138D1D

tetradic

#1D138D #8D1346 #838D13 #138D5A

square

#1D138D #8D1346 #838D13 #138D5A

split-complementary

#1D138D #8D5A13 #468D13

monochromatic

#070421 #120C57 #1D138D #281AC3 #4536E4

Accessibility & contrast

On white

13.73

#1D138D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1D138D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D138D

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D138D	#FFFFFF	#000000	##FFFFFF
##1D138D	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003390

Deuteranopia (green-blind)

#00278B

Tritanopia (blue-blind)

#003B53

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1d138d;
/* rgb */ color: rgb(29, 19, 141);
/* oklch */ color: oklch(31.8% 0.184 272.2);

Tailwind

colors: {
  custom: {
    50: '#7056b0',
    500: '#1d138d',
    950: '#000000',
  },
}

SCSS

$custom: #1d138d;
$custom-light: #7056b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d138d",
  "rgb": {
    "r": 29,
    "g": 19,
    "b": 141
  },
  "hsl": {
    "h": 244.918,
    "s": 76.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31812,
    "c": 0.18386,
    "h": 272.2
  },
  "luminance": 0.0265
}

Semantic roles & 50–950 ramp

primary

#1D138D

secondary

#B6C13B

accent

#F335E3

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1D138D

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

Preview Lab → · Contrast checker → · Palette generator →