#1C2584#1C2584

#1C2584 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.2% C 0.156 H 270.4°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#1C2584
RGB	rgb(28, 37, 132)
HSL	hsl(235, 65%, 31%)
HSV	hsv(235, 79%, 52%)
CMYK	cmyk(78.8%, 72%, 0%, 48.2%)
CIE-LAB	lab(20.96, 31.75, -53.93)
CIE-LCH	lch(20.96, 62.58, 300.48°)
OKLab	oklab(33.17% 0.0012 -0.1561)
OKLCH	oklch(33.17% 0.156 270.4)
XYZ	xyz(5.3039, 3.2354, 22.1703)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2584 #847B1C

analogous

#1C5984 #1C2584 #471C84

triadic

#1C2584 #841C25 #25841C

tetradic

#1C2584 #841C59 #847B1C #1C8447

square

#1C2584 #841C59 #847B1C #1C8447

split-complementary

#1C2584 #84471C #59841C

monochromatic

#07091F #111752 #1C2584 #2733B6 #4350D7

Accessibility & contrast

On white

12.75

#1C2584 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1C2584 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2584

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2584	#FFFFFF	#000000	##FFFFFF
##1C2584	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003787

Deuteranopia (green-blind)

#002D82

Tritanopia (blue-blind)

#003F51

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1c2584;
/* rgb */ color: rgb(28, 37, 132);
/* oklch */ color: oklch(33.2% 0.156 270.4);

Tailwind

colors: {
  custom: {
    50: '#6b60a9',
    500: '#1c2584',
    950: '#000000',
  },
}

SCSS

$custom: #1c2584;
$custom-light: #6b60a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2584",
  "rgb": {
    "r": 28,
    "g": 37,
    "b": 132
  },
  "hsl": {
    "h": 234.808,
    "s": 65,
    "l": 31.373
  },
  "oklch": {
    "l": 0.33167,
    "c": 0.15613,
    "h": 270.4
  },
  "luminance": 0.03236
}

Semantic roles & 50–950 ramp

primary

#1C2584

secondary

#B7AD45

accent

#D940E8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1C2584

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

Preview Lab → · Contrast checker → · Palette generator →