#1D187E#1D187E

#1D187E is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.6% C 0.162 H 273.4°. Best body text is #FFFFFF at 14.15:1 contrast (WCAG AA passes).

Color values

HEX	#1D187E
RGB	rgb(29, 24, 126)
HSL	hsl(243, 68%, 29%)
HSV	hsv(243, 81%, 49%)
CMYK	cmyk(77%, 81%, 0%, 50.6%)
CIE-LAB	lab(17.55, 37.55, -55.76)
CIE-LCH	lch(17.55, 67.23, 303.96°)
OKLab	oklab(30.56% 0.0095 -0.1613)
OKLCH	oklch(30.56% 0.162 273.4)
XYZ	xyz(4.5980, 2.4204, 19.9595)
Luminance	0.0242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D187E #797E18

analogous

#18467E #1D187E #50187E

triadic

#1D187E #7E1D18 #187E1D

tetradic

#1D187E #7E1846 #797E18 #187E50

square

#1D187E #7E1846 #797E18 #187E50

split-complementary

#1D187E #7E5018 #467E18

monochromatic

#06051A #110E4B #1D187E #2922B1 #3F37D9

Accessibility & contrast

On white

14.15

#1D187E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#1D187E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D187E

14.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D187E	#FFFFFF	#000000	##FFFFFF
##1D187E	1.00	14.15	1.48	14.15
#FFFFFF	14.15	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.15	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: #1d187e;
/* rgb */ color: rgb(29, 24, 126);
/* oklch */ color: oklch(30.6% 0.162 273.4);

Tailwind

colors: {
  custom: {
    50: '#6b57a5',
    500: '#1d187e',
    950: '#000000',
  },
}

SCSS

$custom: #1d187e;
$custom-light: #6b57a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1d187e",
  "rgb": {
    "r": 29,
    "g": 24,
    "b": 126
  },
  "hsl": {
    "h": 242.941,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.30561,
    "c": 0.16161,
    "h": 273.4
  },
  "luminance": 0.02421
}

Semantic roles & 50–950 ramp

primary

#1D187E

secondary

#ADB23F

accent

#EB3DE2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1D187E

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

Preview Lab → · Contrast checker → · Palette generator →