#1D509C#1D509C

#1D509C is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.2% C 0.135 H 258.7°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#1D509C
RGB	rgb(29, 80, 156)
HSL	hsl(216, 69%, 36%)
HSV	hsv(216, 81%, 61%)
CMYK	cmyk(81.4%, 48.7%, 0%, 38.8%)
CIE-LAB	lab(34.80, 12.05, -46.18)
CIE-LCH	lch(34.80, 47.73, 284.63°)
OKLab	oklab(44.16% -0.0266 -0.1327)
OKLCH	oklch(44.16% 0.135 258.7)
XYZ	xyz(9.3739, 8.3977, 32.5729)
Luminance	0.0840 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D509C #9C691D

analogous

#1D909C #1D509C #2A1D9C

triadic

#1D509C #9C1D50 #509C1D

tetradic

#1D509C #9C1D90 #9C691D #1D9C2A

square

#1D509C #9C1D90 #9C691D #1D9C2A

split-complementary

#1D509C #9C2A1D #909C1D

monochromatic

#0A1B35 #133668 #1D509C #276AD0 #548CDF

Accessibility & contrast

On white

7.84

#1D509C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#1D509C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D509C

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D509C	#FFFFFF	#000000	##FFFFFF
##1D509C	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25589F

Deuteranopia (green-blind)

#004C9A

Tritanopia (blue-blind)

#00626E

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1d509c;
/* rgb */ color: rgb(29, 80, 156);
/* oklch */ color: oklch(44.2% 0.135 258.7);

Tailwind

colors: {
  custom: {
    50: '#6e80ba',
    500: '#1d509c',
    950: '#000000',
  },
}

SCSS

$custom: #1d509c;
$custom-light: #6e80ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1d509c",
  "rgb": {
    "r": 29,
    "g": 80,
    "b": 156
  },
  "hsl": {
    "h": 215.906,
    "s": 68.649,
    "l": 36.275
  },
  "oklch": {
    "l": 0.44164,
    "c": 0.13537,
    "h": 258.7
  },
  "luminance": 0.08399
}

Semantic roles & 50–950 ramp

primary

#1D509C

secondary

#C29552

accent

#A53CEB

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #1D509C

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

Preview Lab → · Contrast checker → · Palette generator →