#1D4589#1D4589

#1D4589 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.2% C 0.122 H 260.3°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#1D4589
RGB	rgb(29, 69, 137)
HSL	hsl(218, 65%, 33%)
HSV	hsv(218, 79%, 54%)
CMYK	cmyk(78.8%, 49.6%, 0%, 46.3%)
CIE-LAB	lab(30.21, 11.86, -41.98)
CIE-LCH	lch(30.21, 43.62, 285.78°)
OKLab	oklab(40.22% -0.0206 -0.1206)
OKLCH	oklch(40.22% 0.122 260.3)
XYZ	xyz(7.1485, 6.3228, 24.5057)
Luminance	0.0632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4589 #89611D

analogous

#1D7B89 #1D4589 #2B1D89

triadic

#1D4589 #891D45 #45891D

tetradic

#1D4589 #891D7B #89611D #1D892B

square

#1D4589 #891D7B #89611D #1D892B

split-complementary

#1D4589 #892B1D #7B891D

monochromatic

#081224 #122C56 #1D4589 #285EBC #487ED8

Accessibility & contrast

On white

9.27

#1D4589 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1D4589 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4589

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4589	#FFFFFF	#000000	##FFFFFF
##1D4589	1.00	9.27	2.26	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4C8C

Deuteranopia (green-blind)

#004388

Tritanopia (blue-blind)

#005560

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1d4589;
/* rgb */ color: rgb(29, 69, 137);
/* oklch */ color: oklch(40.2% 0.122 260.3);

Tailwind

colors: {
  custom: {
    50: '#6a78ac',
    500: '#1d4589',
    950: '#000000',
  },
}

SCSS

$custom: #1d4589;
$custom-light: #6a78ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4589",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 137
  },
  "hsl": {
    "h": 217.778,
    "s": 65.06,
    "l": 32.549
  },
  "oklch": {
    "l": 0.40222,
    "c": 0.12235,
    "h": 260.3
  },
  "luminance": 0.06324
}

Semantic roles & 50–950 ramp

primary

#1D4589

secondary

#BA9047

accent

#AA40E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1D4589

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

Preview Lab → · Contrast checker → · Palette generator →