#1D3686#1D3686

#1D3686 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.7% C 0.138 H 266.3°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#1D3686
RGB	rgb(29, 54, 134)
HSL	hsl(226, 64%, 32%)
HSV	hsv(226, 78%, 53%)
CMYK	cmyk(78.4%, 59.7%, 0%, 47.5%)
CIE-LAB	lab(25.62, 21.07, -47.55)
CIE-LCH	lch(25.62, 52.01, 293.90°)
OKLab	oklab(36.67% -0.0088 -0.1373)
OKLCH	oklch(36.67% 0.138 266.3)
XYZ	xyz(6.1274, 4.6201, 23.1185)
Luminance	0.0462 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3686 #866D1D

analogous

#1D6B86 #1D3686 #381D86

triadic

#1D3686 #861D36 #36861D

tetradic

#1D3686 #861D6B #866D1D #1D8638

square

#1D3686 #861D6B #866D1D #1D8638

split-complementary

#1D3686 #86381D #6B861D

monochromatic

#070D21 #122254 #1D3686 #284AB8 #4669D7

Accessibility & contrast

On white

10.91

#1D3686 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#1D3686 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3686

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3686	#FFFFFF	#000000	##FFFFFF
##1D3686	1.00	10.91	1.92	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004289

Deuteranopia (green-blind)

#003884

Tritanopia (blue-blind)

#004A58

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1d3686;
/* rgb */ color: rgb(29, 54, 134);
/* oklch */ color: oklch(36.7% 0.138 266.3);

Tailwind

colors: {
  custom: {
    50: '#6a6caa',
    500: '#1d3686',
    950: '#000000',
  },
}

SCSS

$custom: #1d3686;
$custom-light: #6a6caa;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3686",
  "rgb": {
    "r": 29,
    "g": 54,
    "b": 134
  },
  "hsl": {
    "h": 225.714,
    "s": 64.417,
    "l": 31.961
  },
  "oklch": {
    "l": 0.36668,
    "c": 0.13755,
    "h": 266.3
  },
  "luminance": 0.04621
}

Semantic roles & 50–950 ramp

primary

#1D3686

secondary

#B99D46

accent

#C040E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1D3686

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

Preview Lab → · Contrast checker → · Palette generator →