#1C509D#1C509D

#1C509D is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.2% C 0.137 H 258.6°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#1C509D
RGB	rgb(28, 80, 157)
HSL	hsl(216, 70%, 36%)
HSV	hsv(216, 82%, 62%)
CMYK	cmyk(82.2%, 49%, 0%, 38.4%)
CIE-LAB	lab(34.84, 12.35, -46.72)
CIE-LCH	lch(34.84, 48.32, 284.81°)
OKLab	oklab(44.21% -0.027 -0.1343)
OKLCH	oklch(44.21% 0.137 258.6)
XYZ	xyz(9.4311, 8.4174, 33.0194)
Luminance	0.0842 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C509D #9D691C

analogous

#1C919D #1C509D #291C9D

triadic

#1C509D #9D1C50 #509D1C

tetradic

#1C509D #9D1C91 #9D691C #1C9D29

square

#1C509D #9D1C91 #9D691C #1C9D29

split-complementary

#1C509D #9D291C #919D1C

monochromatic

#091B35 #133669 #1C509D #256AD1 #538CE0

Accessibility & contrast

On white

7.82

#1C509D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#1C509D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C509D

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C509D	#FFFFFF	#000000	##FFFFFF
##1C509D	1.00	7.82	2.68	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2358A0

Deuteranopia (green-blind)

#004C9B

Tritanopia (blue-blind)

#00636F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1c509d;
/* rgb */ color: rgb(28, 80, 157);
/* oklch */ color: oklch(44.2% 0.137 258.6);

Tailwind

colors: {
  custom: {
    50: '#6e80ba',
    500: '#1c509d',
    950: '#000000',
  },
}

SCSS

$custom: #1c509d;
$custom-light: #6e80ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1c509d",
  "rgb": {
    "r": 28,
    "g": 80,
    "b": 157
  },
  "hsl": {
    "h": 215.814,
    "s": 69.73,
    "l": 36.275
  },
  "oklch": {
    "l": 0.44209,
    "c": 0.13702,
    "h": 258.6
  },
  "luminance": 0.08419
}

Semantic roles & 50–950 ramp

primary

#1C509D

secondary

#C39551

accent

#A53BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #1C509D

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

Preview Lab → · Contrast checker → · Palette generator →