#1D4E9F#1D4E9F

#1D4E9F is a dark, vivid blue. Relative luminance 0.082; OKLCH L 43.9% C 0.142 H 260.1°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#1D4E9F
RGB	rgb(29, 78, 159)
HSL	hsl(217, 69%, 37%)
HSV	hsv(217, 82%, 62%)
CMYK	cmyk(81.8%, 50.9%, 0%, 37.6%)
CIE-LAB	lab(34.42, 14.60, -48.59)
CIE-LCH	lch(34.42, 50.74, 286.73°)
OKLab	oklab(43.94% -0.0245 -0.1399)
OKLCH	oklch(43.94% 0.142 260.1)
XYZ	xyz(9.4868, 8.2121, 33.8793)
Luminance	0.0821 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4E9F #9F6E1D

analogous

#1D8F9F #1D4E9F #2D1D9F

triadic

#1D4E9F #9F1D4E #4E9F1D

tetradic

#1D4E9F #9F1D8F #9F6E1D #1D9F2D

square

#1D4E9F #9F1D8F #9F6E1D #1D9F2D

split-complementary

#1D4E9F #9F2D1D #8F9F1D

monochromatic

#0A1B37 #14356B #1D4E9F #2667D3 #568AE0

Accessibility & contrast

On white

7.95

#1D4E9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#1D4E9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4E9F

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4E9F	#FFFFFF	#000000	##FFFFFF
##1D4E9F	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B57A2

Deuteranopia (green-blind)

#004B9D

Tritanopia (blue-blind)

#00626F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1d4e9f;
/* rgb */ color: rgb(29, 78, 159);
/* oklch */ color: oklch(43.9% 0.142 260.1);

Tailwind

colors: {
  custom: {
    50: '#6f7ebc',
    500: '#1d4e9f',
    950: '#000000',
  },
}

SCSS

$custom: #1d4e9f;
$custom-light: #6f7ebc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4e9f",
  "rgb": {
    "r": 29,
    "g": 78,
    "b": 159
  },
  "hsl": {
    "h": 217.385,
    "s": 69.149,
    "l": 36.863
  },
  "oklch": {
    "l": 0.43942,
    "c": 0.14203,
    "h": 260.1
  },
  "luminance": 0.08213
}

Semantic roles & 50–950 ramp

primary

#1D4E9F

secondary

#C49A54

accent

#AA3CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D4E9F

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

Preview Lab → · Contrast checker → · Palette generator →