#1D387C#1D387C

#1D387C is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.2% C 0.120 H 264.7°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).

Color values

HEX	#1D387C
RGB	rgb(29, 56, 124)
HSL	hsl(223, 62%, 30%)
HSV	hsv(223, 77%, 49%)
CMYK	cmyk(76.6%, 54.8%, 0%, 51.4%)
CIE-LAB	lab(25.39, 15.64, -41.65)
CIE-LCH	lch(25.39, 44.49, 290.59°)
OKLab	oklab(36.24% -0.0111 -0.1199)
OKLCH	oklch(36.24% 0.12 264.7)
XYZ	xyz(5.5577, 4.5442, 19.6491)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D387C #7C611D

analogous

#1D687C #1D387C #311D7C

triadic

#1D387C #7C1D38 #387C1D

tetradic

#1D387C #7C1D68 #7C611D #1D7C31

square

#1D387C #7C1D68 #7C611D #1D7C31

split-complementary

#1D387C #7C311D #687C1D

monochromatic

#060B19 #11224A #1D387C #294EAE #416AD3

Accessibility & contrast

On white

11.00

#1D387C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1D387C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D387C

11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D387C	#FFFFFF	#000000	##FFFFFF
##1D387C	1.00	11.00	1.91	11.00
#FFFFFF	11.00	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07417E

Deuteranopia (green-blind)

#00387B

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1d387c;
/* rgb */ color: rgb(29, 56, 124);
/* oklch */ color: oklch(36.2% 0.120 264.7);

Tailwind

colors: {
  custom: {
    50: '#686ea2',
    500: '#1d387c',
    950: '#000000',
  },
}

SCSS

$custom: #1d387c;
$custom-light: #686ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d387c",
  "rgb": {
    "r": 29,
    "g": 56,
    "b": 124
  },
  "hsl": {
    "h": 222.947,
    "s": 62.092,
    "l": 30
  },
  "oklch": {
    "l": 0.36242,
    "c": 0.12041,
    "h": 264.7
  },
  "luminance": 0.04545
}

Semantic roles & 50–950 ramp

primary

#1D387C

secondary

#B09145

accent

#B743E5

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1D387C

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

Preview Lab → · Contrast checker → · Palette generator →