#1C27A9#1C27A9

#1C27A9 is a dark, highly saturated blue. Relative luminance 0.046; OKLCH L 37.6% C 0.201 H 268.6°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#1C27A9
RGB	rgb(28, 39, 169)
HSL	hsl(235, 72%, 39%)
HSV	hsv(235, 83%, 66%)
CMYK	cmyk(83.4%, 76.9%, 0%, 33.7%)
CIE-LAB	lab(25.45, 43.74, -69.31)
CIE-LCH	lch(25.45, 81.96, 302.25°)
OKLab	oklab(37.57% -0.0048 -0.2008)
OKLCH	oklch(37.57% 0.201 268.6)
XYZ	xyz(8.3634, 4.5615, 37.9681)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C27A9 #A99E1C

analogous

#1C6DA9 #1C27A9 #571CA9

triadic

#1C27A9 #A91C27 #27A91C

tetradic

#1C27A9 #A91C6D #A99E1C #1CA957

square

#1C27A9 #A91C6D #A99E1C #1CA957

split-complementary

#1C27A9 #A9571C #6DA91C

monochromatic

#0B0F40 #131B74 #1C27A9 #2735DB #5B66E4

Accessibility & contrast

On white

10.98

#1C27A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1C27A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C27A9

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C27A9	#FFFFFF	#000000	##FFFFFF
##1C27A9	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043AD

Deuteranopia (green-blind)

#0035A7

Tritanopia (blue-blind)

#004E67

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1c27a9;
/* rgb */ color: rgb(28, 39, 169);
/* oklch */ color: oklch(37.6% 0.201 268.6);

Tailwind

colors: {
  custom: {
    50: '#7563c4',
    500: '#1c27a9',
    950: '#000000',
  },
}

SCSS

$custom: #1c27a9;
$custom-light: #7563c4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c27a9",
  "rgb": {
    "r": 28,
    "g": 39,
    "b": 169
  },
  "hsl": {
    "h": 235.319,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.3757,
    "c": 0.20091,
    "h": 268.6
  },
  "luminance": 0.04562
}

Semantic roles & 50–950 ramp

primary

#1C27A9

secondary

#C8BF59

accent

#E039EE

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0513

muted

#7C7A82

Preview Lab

Preview with #1C27A9

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

Preview Lab → · Contrast checker → · Palette generator →