#1D135B#1D135B

#1D135B is a dark, vivid blue. Relative luminance 0.015; OKLCH L 25.8% C 0.121 H 280.0°. Best body text is #FFFFFF at 16.20:1 contrast (WCAG AA passes).

Color values

HEX	#1D135B
RGB	rgb(29, 19, 91)
HSL	hsl(248, 65%, 22%)
HSV	hsv(248, 79%, 36%)
CMYK	cmyk(68.1%, 79.1%, 0%, 64.3%)
CIE-LAB	lab(12.49, 28.36, -41.24)
CIE-LCH	lch(12.49, 50.05, 304.52°)
OKLab	oklab(25.8% 0.021 -0.119)
OKLCH	oklch(25.8% 0.121 280)
XYZ	xyz(2.6273, 1.4821, 10.0431)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D135B #515B13

analogous

#132D5B #1D135B #41135B

triadic

#1D135B #5B1D13 #135B1D

tetradic

#1D135B #5B132D #515B13 #135B41

square

#1D135B #5B132D #515B13 #135B41

split-complementary

#1D135B #5B4113 #2D5B13

monochromatic

#080519 #0D0828 #1D135B #2D1E8E #3D28C0

Accessibility & contrast

On white

16.20

#1D135B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#1D135B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D135B

16.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D135B	#FFFFFF	#000000	##FFFFFF
##1D135B	1.00	16.20	1.30	16.20
#FFFFFF	16.20	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00235D

Deuteranopia (green-blind)

#001E5A

Tritanopia (blue-blind)

#002736

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #1d135b;
/* rgb */ color: rgb(29, 19, 91);
/* oklch */ color: oklch(25.8% 0.121 280.0);

Tailwind

colors: {
  custom: {
    50: '#63528a',
    500: '#1d135b',
    950: '#000000',
  },
}

SCSS

$custom: #1d135b;
$custom-light: #63528a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d135b",
  "rgb": {
    "r": 29,
    "g": 19,
    "b": 91
  },
  "hsl": {
    "h": 248.333,
    "s": 65.455,
    "l": 21.569
  },
  "oklch": {
    "l": 0.25801,
    "c": 0.12085,
    "h": 280
  },
  "luminance": 0.01482
}

Semantic roles & 50–950 ramp

primary

#1D135B

secondary

#869337

accent

#E83FD1

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1D135B

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

Preview Lab → · Contrast checker → · Palette generator →