#1D387D#1D387D

#1D387D is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.3% C 0.122 H 264.8°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#1D387D
RGB	rgb(29, 56, 125)
HSL	hsl(223, 62%, 30%)
HSV	hsv(223, 77%, 49%)
CMYK	cmyk(76.8%, 55.2%, 0%, 51%)
CIE-LAB	lab(25.47, 16.05, -42.16)
CIE-LCH	lch(25.47, 45.11, 290.84°)
OKLab	oklab(36.33% -0.011 -0.1214)
OKLCH	oklch(36.33% 0.122 264.8)
XYZ	xyz(5.6212, 4.5696, 19.9838)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D387D #7D621D

analogous

#1D687D #1D387D #321D7D

triadic

#1D387D #7D1D38 #387D1D

tetradic

#1D387D #7D1D68 #7D621D #1D7D32

square

#1D387D #7D1D68 #7D621D #1D7D32

split-complementary

#1D387D #7D321D #687D1D

monochromatic

#060B1A #11224B #1D387D #294EAF #416AD3

Accessibility & contrast

On white

10.97

#1D387D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1D387D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D387D

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D387D	#FFFFFF	#000000	##FFFFFF
##1D387D	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05417F

Deuteranopia (green-blind)

#00387C

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1d387d;
/* rgb */ color: rgb(29, 56, 125);
/* oklch */ color: oklch(36.3% 0.122 264.8);

Tailwind

colors: {
  custom: {
    50: '#686ea3',
    500: '#1d387d',
    950: '#000000',
  },
}

SCSS

$custom: #1d387d;
$custom-light: #686ea3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d387d",
  "rgb": {
    "r": 29,
    "g": 56,
    "b": 125
  },
  "hsl": {
    "h": 223.125,
    "s": 62.338,
    "l": 30.196
  },
  "oklch": {
    "l": 0.36325,
    "c": 0.12188,
    "h": 264.8
  },
  "luminance": 0.0457
}

Semantic roles & 50–950 ramp

primary

#1D387D

secondary

#B19245

accent

#B842E5

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1D387D

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

Preview Lab → · Contrast checker → · Palette generator →