#1C189E#1C189E

#1C189E is a dark, highly saturated blue. Relative luminance 0.034; OKLCH L 34.4% C 0.200 H 270.2°. Best body text is #FFFFFF at 12.55:1 contrast (WCAG AA passes).

Color values

HEX	#1C189E
RGB	rgb(28, 24, 158)
HSL	hsl(242, 74%, 36%)
HSV	hsv(242, 85%, 62%)
CMYK	cmyk(82.3%, 84.8%, 0%, 38%)
CIE-LAB	lab(21.46, 47.86, -69.24)
CIE-LCH	lch(21.46, 84.17, 304.65°)
OKLab	oklab(34.4% 0.0007 -0.2004)
OKLCH	oklch(34.4% 0.2 270.2)
XYZ	xyz(6.9750, 3.3680, 32.6236)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C189E #9A9E18

analogous

#18579E #1C189E #5F189E

triadic

#1C189E #9E1C18 #189E1C

tetradic

#1C189E #9E1857 #9A9E18 #189E5F

square

#1C189E #9E1857 #9A9E18 #189E5F

split-complementary

#1C189E #9E5F18 #579E18

monochromatic

#090834 #131069 #1C189E #2520D3 #514DE4

Accessibility & contrast

On white

12.55

#1C189E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1C189E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C189E

12.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C189E	#FFFFFF	#000000	##FFFFFF
##1C189E	1.00	12.55	1.67	12.55
#FFFFFF	12.55	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003AA2

Deuteranopia (green-blind)

#002C9C

Tritanopia (blue-blind)

#00445D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1c189e;
/* rgb */ color: rgb(28, 24, 158);
/* oklch */ color: oklch(34.4% 0.200 270.2);

Tailwind

colors: {
  custom: {
    50: '#735abc',
    500: '#1c189e',
    950: '#000000',
  },
}

SCSS

$custom: #1c189e;
$custom-light: #735abc;
$custom-dark: #000000;

JSON

{
  "hex": "#1c189e",
  "rgb": {
    "r": 28,
    "g": 24,
    "b": 158
  },
  "hsl": {
    "h": 241.791,
    "s": 73.626,
    "l": 35.686
  },
  "oklch": {
    "l": 0.34401,
    "c": 0.2004,
    "h": 270.2
  },
  "luminance": 0.03369
}

Semantic roles & 50–950 ramp

primary

#1C189E

secondary

#C2C64C

accent

#F038EB

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1C189E

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

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