#1C509F#1C509F

#1C509F is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.4% C 0.140 H 259.0°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#1C509F
RGB	rgb(28, 80, 159)
HSL	hsl(216, 70%, 37%)
HSV	hsv(216, 82%, 62%)
CMYK	cmyk(82.4%, 49.7%, 0%, 37.6%)
CIE-LAB	lab(34.98, 13.16, -47.70)
CIE-LCH	lch(34.98, 49.48, 285.42°)
OKLab	oklab(44.36% -0.0267 -0.1372)
OKLCH	oklch(44.36% 0.14 259)
XYZ	xyz(9.6033, 8.4862, 33.9260)
Luminance	0.0849 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C509F #9F6B1C

analogous

#1C929F #1C509F #2A1C9F

triadic

#1C509F #9F1C50 #509F1C

tetradic

#1C509F #9F1C92 #9F6B1C #1C9F2A

square

#1C509F #9F1C92 #9F6B1C #1C9F2A

split-complementary

#1C509F #9F2A1C #929F1C

monochromatic

#0A1C37 #13366B #1C509F #256AD3 #548CE1

Accessibility & contrast

On white

7.79

#1C509F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#1C509F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C509F

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C509F	#FFFFFF	#000000	##FFFFFF
##1C509F	1.00	7.79	2.70	7.79
#FFFFFF	7.79	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.79	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: #1c509f;
/* rgb */ color: rgb(28, 80, 159);
/* oklch */ color: oklch(44.4% 0.140 259.0);

Tailwind

colors: {
  custom: {
    50: '#6f80bc',
    500: '#1c509f',
    950: '#000000',
  },
}

SCSS

$custom: #1c509f;
$custom-light: #6f80bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1c509f",
  "rgb": {
    "r": 28,
    "g": 80,
    "b": 159
  },
  "hsl": {
    "h": 216.183,
    "s": 70.053,
    "l": 36.667
  },
  "oklch": {
    "l": 0.44359,
    "c": 0.1398,
    "h": 259
  },
  "luminance": 0.08487
}

Semantic roles & 50–950 ramp

primary

#1C509F

secondary

#C49753

accent

#A63BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1C509F

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

Preview Lab → · Contrast checker → · Palette generator →