#1C187E#1C187E

#1C187E is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.5% C 0.162 H 272.9°. Best body text is #FFFFFF at 14.18:1 contrast (WCAG AA passes).

Color values

HEX	#1C187E
RGB	rgb(28, 24, 126)
HSL	hsl(242, 68%, 29%)
HSV	hsv(242, 81%, 49%)
CMYK	cmyk(77.8%, 81%, 0%, 50.6%)
CIE-LAB	lab(17.49, 37.47, -55.87)
CIE-LCH	lch(17.49, 67.27, 303.85°)
OKLab	oklab(30.5% 0.0082 -0.1617)
OKLCH	oklch(30.5% 0.162 272.9)
XYZ	xyz(4.5702, 2.4060, 19.9582)
Luminance	0.0241 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C187E #7A7E18

analogous

#18477E #1C187E #4F187E

triadic

#1C187E #7E1C18 #187E1C

tetradic

#1C187E #7E1847 #7A7E18 #187E4F

square

#1C187E #7E1847 #7A7E18 #187E4F

split-complementary

#1C187E #7E4F18 #477E18

monochromatic

#06051A #110E4B #1C187E #2722B1 #3E37D9

Accessibility & contrast

On white

14.18

#1C187E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#1C187E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C187E

14.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C187E	#FFFFFF	#000000	##FFFFFF
##1C187E	1.00	14.18	1.48	14.18
#FFFFFF	14.18	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003081

Deuteranopia (green-blind)

#00267C

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1c187e;
/* rgb */ color: rgb(28, 24, 126);
/* oklch */ color: oklch(30.5% 0.162 272.9);

Tailwind

colors: {
  custom: {
    50: '#6b57a5',
    500: '#1c187e',
    950: '#000000',
  },
}

SCSS

$custom: #1c187e;
$custom-light: #6b57a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1c187e",
  "rgb": {
    "r": 28,
    "g": 24,
    "b": 126
  },
  "hsl": {
    "h": 242.353,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.30497,
    "c": 0.16189,
    "h": 272.9
  },
  "luminance": 0.02407
}

Semantic roles & 50–950 ramp

primary

#1C187E

secondary

#AEB23F

accent

#EB3DE4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1C187E

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

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