#1D4585#1D4585

#1D4585 is a dark, moderate blue. Relative luminance 0.062; OKLCH L 39.9% C 0.117 H 259.5°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#1D4585
RGB	rgb(29, 69, 133)
HSL	hsl(217, 64%, 32%)
HSV	hsv(217, 78%, 52%)
CMYK	cmyk(78.2%, 48.1%, 0%, 47.8%)
CIE-LAB	lab(29.94, 10.24, -39.95)
CIE-LCH	lch(29.94, 41.24, 284.38°)
OKLab	oklab(39.92% -0.0212 -0.1146)
OKLCH	oklch(39.92% 0.117 259.5)
XYZ	xyz(6.8669, 6.2101, 23.0225)
Luminance	0.0621 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4585 #855D1D

analogous

#1D7985 #1D4585 #291D85

triadic

#1D4585 #851D45 #45851D

tetradic

#1D4585 #851D79 #855D1D #1D8529

square

#1D4585 #851D79 #855D1D #1D8529

split-complementary

#1D4585 #85291D #79851D

monochromatic

#071121 #122B53 #1D4585 #285FB7 #467DD7

Accessibility & contrast

On white

9.37

#1D4585 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1D4585 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4585

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4585	#FFFFFF	#000000	##FFFFFF
##1D4585	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234C87

Deuteranopia (green-blind)

#074284

Tritanopia (blue-blind)

#00545E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1d4585;
/* rgb */ color: rgb(29, 69, 133);
/* oklch */ color: oklch(39.9% 0.117 259.5);

Tailwind

colors: {
  custom: {
    50: '#6978a9',
    500: '#1d4585',
    950: '#000000',
  },
}

SCSS

$custom: #1d4585;
$custom-light: #6978a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4585",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 133
  },
  "hsl": {
    "h": 216.923,
    "s": 64.198,
    "l": 31.765
  },
  "oklch": {
    "l": 0.39921,
    "c": 0.11658,
    "h": 259.5
  },
  "luminance": 0.06211
}

Semantic roles & 50–950 ramp

primary

#1D4585

secondary

#B88C46

accent

#A741E7

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1D4585

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

Preview Lab → · Contrast checker → · Palette generator →