#1D4587#1D4587

#1D4587 is a dark, moderate blue. Relative luminance 0.063; OKLCH L 40.1% C 0.119 H 259.9°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#1D4587
RGB	rgb(29, 69, 135)
HSL	hsl(217, 65%, 32%)
HSV	hsv(217, 79%, 53%)
CMYK	cmyk(78.5%, 48.9%, 0%, 47.1%)
CIE-LAB	lab(30.07, 11.05, -40.97)
CIE-LCH	lch(30.07, 42.43, 285.10°)
OKLab	oklab(40.07% -0.0209 -0.1176)
OKLCH	oklch(40.07% 0.119 259.9)
XYZ	xyz(7.0064, 6.2659, 23.7572)
Luminance	0.0627 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4587 #875F1D

analogous

#1D7A87 #1D4587 #2A1D87

triadic

#1D4587 #871D45 #45871D

tetradic

#1D4587 #871D7A #875F1D #1D872A

square

#1D4587 #871D7A #875F1D #1D872A

split-complementary

#1D4587 #872A1D #7A871D

monochromatic

#071222 #122B55 #1D4587 #285FB9 #477DD7

Accessibility & contrast

On white

9.32

#1D4587 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1D4587 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4587

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4587	#FFFFFF	#000000	##FFFFFF
##1D4587	1.00	9.32	2.25	9.32
#FFFFFF	9.32	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#214C89

Deuteranopia (green-blind)

#024286

Tritanopia (blue-blind)

#00555F

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1d4587;
/* rgb */ color: rgb(29, 69, 135);
/* oklch */ color: oklch(40.1% 0.119 259.9);

Tailwind

colors: {
  custom: {
    50: '#6a78aa',
    500: '#1d4587',
    950: '#000000',
  },
}

SCSS

$custom: #1d4587;
$custom-light: #6a78aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4587",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 135
  },
  "hsl": {
    "h": 217.358,
    "s": 64.634,
    "l": 32.157
  },
  "oklch": {
    "l": 0.4007,
    "c": 0.11947,
    "h": 259.9
  },
  "luminance": 0.06267
}

Semantic roles & 50–950 ramp

primary

#1D4587

secondary

#B98E46

accent

#A840E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1D4587

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

Preview Lab → · Contrast checker → · Palette generator →