#1D509D#1D509D

#1D509D is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.2% C 0.137 H 258.9°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#1D509D
RGB	rgb(29, 80, 157)
HSL	hsl(216, 69%, 36%)
HSV	hsv(216, 82%, 62%)
CMYK	cmyk(81.5%, 49%, 0%, 38.4%)
CIE-LAB	lab(34.87, 12.46, -46.67)
CIE-LCH	lch(34.87, 48.30, 284.94°)
OKLab	oklab(44.24% -0.0264 -0.1342)
OKLCH	oklch(44.24% 0.137 258.9)
XYZ	xyz(9.4589, 8.4317, 33.0207)
Luminance	0.0843 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D509D #9D6A1D

analogous

#1D909D #1D509D #2A1D9D

triadic

#1D509D #9D1D50 #509D1D

tetradic

#1D509D #9D1D90 #9D6A1D #1D9D2A

square

#1D509D #9D1D90 #9D6A1D #1D9D2A

split-complementary

#1D509D #9D2A1D #909D1D

monochromatic

#0A1B36 #133669 #1D509D #276AD1 #558CE0

Accessibility & contrast

On white

7.82

#1D509D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#1D509D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D509D

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D509D	#FFFFFF	#000000	##FFFFFF
##1D509D	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2458A0

Deuteranopia (green-blind)

#004D9B

Tritanopia (blue-blind)

#00636F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1d509d;
/* rgb */ color: rgb(29, 80, 157);
/* oklch */ color: oklch(44.2% 0.137 258.9);

Tailwind

colors: {
  custom: {
    50: '#6f80ba',
    500: '#1d509d',
    950: '#000000',
  },
}

SCSS

$custom: #1d509d;
$custom-light: #6f80ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1d509d",
  "rgb": {
    "r": 29,
    "g": 80,
    "b": 157
  },
  "hsl": {
    "h": 216.094,
    "s": 68.817,
    "l": 36.471
  },
  "oklch": {
    "l": 0.44239,
    "c": 0.13676,
    "h": 258.9
  },
  "luminance": 0.08433
}

Semantic roles & 50–950 ramp

primary

#1D509D

secondary

#C39653

accent

#A63CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #1D509D

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

Preview Lab → · Contrast checker → · Palette generator →