#1C509A#1C509A

#1C509A is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.0% C 0.133 H 258.1°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#1C509A
RGB	rgb(28, 80, 154)
HSL	hsl(215, 69%, 36%)
HSV	hsv(215, 82%, 60%)
CMYK	cmyk(81.8%, 48.1%, 0%, 39.6%)
CIE-LAB	lab(34.63, 11.14, -45.24)
CIE-LCH	lch(34.63, 46.59, 283.84°)
OKLab	oklab(43.99% -0.0275 -0.13)
OKLCH	oklch(43.99% 0.133 258.1)
XYZ	xyz(9.1781, 8.3162, 31.6870)
Luminance	0.0832 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C509A #9A661C

analogous

#1C8F9A #1C509A #271C9A

triadic

#1C509A #9A1C50 #509A1C

tetradic

#1C509A #9A1C8F #9A661C #1C9A27

square

#1C509A #9A1C8F #9A661C #1C9A27

split-complementary

#1C509A #9A271C #8F9A1C

monochromatic

#091A32 #133566 #1C509A #256BCE #518CDF

Accessibility & contrast

On white

7.88

#1C509A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#1C509A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C509A

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C509A	#FFFFFF	#000000	##FFFFFF
##1C509A	1.00	7.88	2.66	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.66	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: #1c509a;
/* rgb */ color: rgb(28, 80, 154);
/* oklch */ color: oklch(44.0% 0.133 258.1);

Tailwind

colors: {
  custom: {
    50: '#6e80b8',
    500: '#1c509a',
    950: '#000000',
  },
}

SCSS

$custom: #1c509a;
$custom-light: #6e80b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c509a",
  "rgb": {
    "r": 28,
    "g": 80,
    "b": 154
  },
  "hsl": {
    "h": 215.238,
    "s": 69.231,
    "l": 35.686
  },
  "oklch": {
    "l": 0.43986,
    "c": 0.13287,
    "h": 258.1
  },
  "luminance": 0.08317
}

Semantic roles & 50–950 ramp

primary

#1C509A

secondary

#C29350

accent

#A33CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1C509A

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

Preview Lab → · Contrast checker → · Palette generator →