#1C42A1#1C42A1

#1C42A1 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.5% C 0.160 H 264.1°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#1C42A1
RGB	rgb(28, 66, 161)
HSL	hsl(223, 70%, 37%)
HSV	hsv(223, 83%, 63%)
CMYK	cmyk(82.6%, 59%, 0%, 36.9%)
CIE-LAB	lab(31.15, 23.46, -55.11)
CIE-LCH	lch(31.15, 59.89, 293.06°)
OKLab	oklab(41.5% -0.0166 -0.1593)
OKLCH	oklch(41.5% 0.16 264.1)
XYZ	xyz(8.8578, 6.7154, 34.5407)
Luminance	0.0672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C42A1 #A17B1C

analogous

#1C85A1 #1C42A1 #391CA1

triadic

#1C42A1 #A11C42 #42A11C

tetradic

#1C42A1 #A11C85 #A17B1C #1CA139

square

#1C42A1 #A11C85 #A17B1C #1CA139

split-complementary

#1C42A1 #A1391C #85A11C

monochromatic

#0A1739 #132D6D #1C42A1 #2557D5 #567EE2

Accessibility & contrast

On white

8.96

#1C42A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#1C42A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C42A1

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C42A1	#FFFFFF	#000000	##FFFFFF
##1C42A1	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A4

Deuteranopia (green-blind)

#00439F

Tritanopia (blue-blind)

#005A6B

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1c42a1;
/* rgb */ color: rgb(28, 66, 161);
/* oklch */ color: oklch(41.5% 0.160 264.1);

Tailwind

colors: {
  custom: {
    50: '#7075be',
    500: '#1c42a1',
    950: '#000000',
  },
}

SCSS

$custom: #1c42a1;
$custom-light: #7075be;
$custom-dark: #000000;

JSON

{
  "hex": "#1c42a1",
  "rgb": {
    "r": 28,
    "g": 66,
    "b": 161
  },
  "hsl": {
    "h": 222.857,
    "s": 70.37,
    "l": 37.059
  },
  "oklch": {
    "l": 0.41502,
    "c": 0.16015,
    "h": 264.1
  },
  "luminance": 0.06717
}

Semantic roles & 50–950 ramp

primary

#1C42A1

secondary

#C5A554

accent

#BA3BED

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1C42A1

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

Preview Lab → · Contrast checker → · Palette generator →