#1D509A#1D509A

#1D509A is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.0% C 0.133 H 258.3°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#1D509A
RGB	rgb(29, 80, 154)
HSL	hsl(216, 68%, 36%)
HSV	hsv(216, 81%, 60%)
CMYK	cmyk(81.2%, 48.1%, 0%, 39.6%)
CIE-LAB	lab(34.66, 11.25, -45.19)
CIE-LCH	lch(34.66, 46.57, 283.98°)
OKLab	oklab(44.02% -0.0269 -0.1298)
OKLCH	oklch(44.02% 0.133 258.3)
XYZ	xyz(9.2059, 8.3305, 31.6883)
Luminance	0.0833 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D509A #9A671D

analogous

#1D8E9A #1D509A #281D9A

triadic

#1D509A #9A1D50 #509A1D

tetradic

#1D509A #9A1D8E #9A671D #1D9A28

square

#1D509A #9A1D8E #9A671D #1D9A28

split-complementary

#1D509A #9A281D #8E9A1D

monochromatic

#0A1A33 #133566 #1D509A #276BCE #538CDF

Accessibility & contrast

On white

7.88

#1D509A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#1D509A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D509A

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D509A	#FFFFFF	#000000	##FFFFFF
##1D509A	1.00	7.88	2.67	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27589D

Deuteranopia (green-blind)

#004C99

Tritanopia (blue-blind)

#00626D

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1d509a;
/* rgb */ color: rgb(29, 80, 154);
/* oklch */ color: oklch(44.0% 0.133 258.3);

Tailwind

colors: {
  custom: {
    50: '#6e80b8',
    500: '#1d509a',
    950: '#000000',
  },
}

SCSS

$custom: #1d509a;
$custom-light: #6e80b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d509a",
  "rgb": {
    "r": 29,
    "g": 80,
    "b": 154
  },
  "hsl": {
    "h": 215.52,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.44016,
    "c": 0.13259,
    "h": 258.3
  },
  "luminance": 0.08332
}

Semantic roles & 50–950 ramp

primary

#1D509A

secondary

#C29451

accent

#A43DEB

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1D509A

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

Preview Lab → · Contrast checker → · Palette generator →