#1D458D#1D458D

#1D458D is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.5% C 0.128 H 261.0°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#1D458D
RGB	rgb(29, 69, 141)
HSL	hsl(219, 66%, 33%)
HSV	hsv(219, 79%, 55%)
CMYK	cmyk(79.4%, 51.1%, 0%, 44.7%)
CIE-LAB	lab(30.50, 13.48, -43.99)
CIE-LCH	lch(30.50, 46.01, 287.04°)
OKLab	oklab(40.53% -0.0199 -0.1265)
OKLCH	oklch(40.53% 0.128 261)
XYZ	xyz(7.4408, 6.4397, 26.0450)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D458D #8D651D

analogous

#1D7D8D #1D458D #2D1D8D

triadic

#1D458D #8D1D45 #458D1D

tetradic

#1D458D #8D1D7D #8D651D #1D8D2D

square

#1D458D #8D1D7D #8D651D #1D8D2D

split-complementary

#1D458D #8D2D1D #7D8D1D

monochromatic

#081327 #132C5A #1D458D #275EC0 #4B7EDA

Accessibility & contrast

On white

9.18

#1D458D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#1D458D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D458D

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D458D	#FFFFFF	#000000	##FFFFFF
##1D458D	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194D90

Deuteranopia (green-blind)

#00438C

Tritanopia (blue-blind)

#005662

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1d458d;
/* rgb */ color: rgb(29, 69, 141);
/* oklch */ color: oklch(40.5% 0.128 261.0);

Tailwind

colors: {
  custom: {
    50: '#6b78af',
    500: '#1d458d',
    950: '#000000',
  },
}

SCSS

$custom: #1d458d;
$custom-light: #6b78af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d458d",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 141
  },
  "hsl": {
    "h": 218.571,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.40529,
    "c": 0.12808,
    "h": 261
  },
  "luminance": 0.06441
}

Semantic roles & 50–950 ramp

primary

#1D458D

secondary

#BC934A

accent

#AC3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1D458D

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

Preview Lab → · Contrast checker → · Palette generator →