#1D509F#1D509F

#1D509F is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.4% C 0.140 H 259.2°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#1D509F
RGB	rgb(29, 80, 159)
HSL	hsl(216, 69%, 37%)
HSV	hsv(216, 82%, 62%)
CMYK	cmyk(81.8%, 49.7%, 0%, 37.6%)
CIE-LAB	lab(35.00, 13.26, -47.65)
CIE-LCH	lch(35.00, 49.46, 285.55°)
OKLab	oklab(44.39% -0.0261 -0.1371)
OKLCH	oklch(44.39% 0.14 259.2)
XYZ	xyz(9.6311, 8.5006, 33.9273)
Luminance	0.0850 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D509F #9F6C1D

analogous

#1D919F #1D509F #2B1D9F

triadic

#1D509F #9F1D50 #509F1D

tetradic

#1D509F #9F1D91 #9F6C1D #1D9F2B

square

#1D509F #9F1D91 #9F6C1D #1D9F2B

split-complementary

#1D509F #9F2B1D #919F1D

monochromatic

#0A1C37 #14366B #1D509F #266AD3 #568CE0

Accessibility & contrast

On white

7.78

#1D509F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#1D509F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D509F

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D509F	#FFFFFF	#000000	##FFFFFF
##1D509F	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2159A2

Deuteranopia (green-blind)

#004D9D

Tritanopia (blue-blind)

#006370

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1d509f;
/* rgb */ color: rgb(29, 80, 159);
/* oklch */ color: oklch(44.4% 0.140 259.2);

Tailwind

colors: {
  custom: {
    50: '#6f80bc',
    500: '#1d509f',
    950: '#000000',
  },
}

SCSS

$custom: #1d509f;
$custom-light: #6f80bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d509f",
  "rgb": {
    "r": 29,
    "g": 80,
    "b": 159
  },
  "hsl": {
    "h": 216.462,
    "s": 69.149,
    "l": 36.863
  },
  "oklch": {
    "l": 0.44389,
    "c": 0.13953,
    "h": 259.2
  },
  "luminance": 0.08502
}

Semantic roles & 50–950 ramp

primary

#1D509F

secondary

#C49854

accent

#A73CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D509F

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

Preview Lab → · Contrast checker → · Palette generator →