#1D4688#1D4688

#1D4688 is a dark, moderate blue. Relative luminance 0.064; OKLCH L 40.4% C 0.120 H 259.6°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#1D4688
RGB	rgb(29, 70, 136)
HSL	hsl(217, 65%, 32%)
HSV	hsv(217, 79%, 53%)
CMYK	cmyk(78.7%, 48.5%, 0%, 46.7%)
CIE-LAB	lab(30.44, 10.77, -40.99)
CIE-LCH	lch(30.44, 42.38, 284.73°)
OKLab	oklab(40.38% -0.0216 -0.1177)
OKLCH	oklch(40.38% 0.12 259.6)
XYZ	xyz(7.1392, 6.4183, 24.1504)
Luminance	0.0642 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4688 #885F1D

analogous

#1D7C88 #1D4688 #291D88

triadic

#1D4688 #881D46 #46881D

tetradic

#1D4688 #881D7C #885F1D #1D8829

square

#1D4688 #881D7C #885F1D #1D8829

split-complementary

#1D4688 #88291D #7C881D

monochromatic

#071223 #122C56 #1D4688 #2860BA #487FD8

Accessibility & contrast

On white

9.20

#1D4688 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#1D4688 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4688

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4688	#FFFFFF	#000000	##FFFFFF
##1D4688	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224D8A

Deuteranopia (green-blind)

#044387

Tritanopia (blue-blind)

#005660

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1d4688;
/* rgb */ color: rgb(29, 70, 136);
/* oklch */ color: oklch(40.4% 0.120 259.6);

Tailwind

colors: {
  custom: {
    50: '#6a78ab',
    500: '#1d4688',
    950: '#000000',
  },
}

SCSS

$custom: #1d4688;
$custom-light: #6a78ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4688",
  "rgb": {
    "r": 29,
    "g": 70,
    "b": 136
  },
  "hsl": {
    "h": 217.009,
    "s": 64.848,
    "l": 32.353
  },
  "oklch": {
    "l": 0.40377,
    "c": 0.11963,
    "h": 259.6
  },
  "luminance": 0.06419
}

Semantic roles & 50–950 ramp

primary

#1D4688

secondary

#BA8E47

accent

#A840E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1D4688

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

Preview Lab → · Contrast checker → · Palette generator →