#1D3685#1D3685

#1D3685 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.6% C 0.136 H 266.3°. Best body text is #FFFFFF at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#1D3685
RGB	rgb(29, 54, 133)
HSL	hsl(226, 64%, 32%)
HSV	hsv(226, 78%, 52%)
CMYK	cmyk(78.2%, 59.4%, 0%, 47.8%)
CIE-LAB	lab(25.54, 20.67, -47.06)
CIE-LCH	lch(25.54, 51.40, 293.71°)
OKLab	oklab(36.58% -0.0088 -0.1358)
OKLCH	oklch(36.58% 0.136 266.3)
XYZ	xyz(6.0580, 4.5923, 22.7529)
Luminance	0.0459 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3685 #856C1D

analogous

#1D6A85 #1D3685 #381D85

triadic

#1D3685 #851D36 #36851D

tetradic

#1D3685 #851D6A #856C1D #1D8538

square

#1D3685 #851D6A #856C1D #1D8538

split-complementary

#1D3685 #85381D #6A851D

monochromatic

#070D21 #122253 #1D3685 #284AB7 #4669D7

Accessibility & contrast

On white

10.95

#1D3685 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#1D3685 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3685

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3685	#FFFFFF	#000000	##FFFFFF
##1D3685	1.00	10.95	1.92	10.95
#FFFFFF	10.95	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004288

Deuteranopia (green-blind)

#003883

Tritanopia (blue-blind)

#004A58

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1d3685;
/* rgb */ color: rgb(29, 54, 133);
/* oklch */ color: oklch(36.6% 0.136 266.3);

Tailwind

colors: {
  custom: {
    50: '#6a6ca9',
    500: '#1d3685',
    950: '#000000',
  },
}

SCSS

$custom: #1d3685;
$custom-light: #6a6ca9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3685",
  "rgb": {
    "r": 29,
    "g": 54,
    "b": 133
  },
  "hsl": {
    "h": 225.577,
    "s": 64.198,
    "l": 31.765
  },
  "oklch": {
    "l": 0.36579,
    "c": 0.13613,
    "h": 266.3
  },
  "luminance": 0.04593
}

Semantic roles & 50–950 ramp

primary

#1D3685

secondary

#B89D46

accent

#BF41E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1D3685

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

Preview Lab → · Contrast checker → · Palette generator →