#1D519D#1D519D

#1D519D is a dark, vivid blue. Relative luminance 0.086; OKLCH L 44.5% C 0.136 H 258.4°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#1D519D
RGB	rgb(29, 81, 157)
HSL	hsl(216, 69%, 36%)
HSV	hsv(216, 82%, 62%)
CMYK	cmyk(81.5%, 48.4%, 0%, 38.4%)
CIE-LAB	lab(35.16, 11.78, -46.20)
CIE-LCH	lch(35.16, 47.67, 284.31°)
OKLab	oklab(44.47% -0.0272 -0.1328)
OKLCH	oklch(44.47% 0.136 258.4)
XYZ	xyz(9.5327, 8.5792, 33.0453)
Luminance	0.0858 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D519D #9D691D

analogous

#1D919D #1D519D #291D9D

triadic

#1D519D #9D1D51 #519D1D

tetradic

#1D519D #9D1D91 #9D691D #1D9D29

square

#1D519D #9D1D91 #9D691D #1D9D29

split-complementary

#1D519D #9D291D #919D1D

monochromatic

#0A1C36 #133669 #1D519D #276CD1 #558DE0

Accessibility & contrast

On white

7.73

#1D519D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#1D519D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D519D

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D519D	#FFFFFF	#000000	##FFFFFF
##1D519D	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2659A0

Deuteranopia (green-blind)

#004D9B

Tritanopia (blue-blind)

#00636F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1d519d;
/* rgb */ color: rgb(29, 81, 157);
/* oklch */ color: oklch(44.5% 0.136 258.4);

Tailwind

colors: {
  custom: {
    50: '#6f81ba',
    500: '#1d519d',
    950: '#000000',
  },
}

SCSS

$custom: #1d519d;
$custom-light: #6f81ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1d519d",
  "rgb": {
    "r": 29,
    "g": 81,
    "b": 157
  },
  "hsl": {
    "h": 215.625,
    "s": 68.817,
    "l": 36.471
  },
  "oklch": {
    "l": 0.44466,
    "c": 0.13553,
    "h": 258.4
  },
  "luminance": 0.0858
}

Semantic roles & 50–950 ramp

primary

#1D519D

secondary

#C39553

accent

#A43CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #1D519D

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

Preview Lab → · Contrast checker → · Palette generator →