#1D458C#1D458C

#1D458C is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.5% C 0.127 H 260.9°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#1D458C
RGB	rgb(29, 69, 140)
HSL	hsl(218, 66%, 33%)
HSV	hsv(218, 79%, 55%)
CMYK	cmyk(79.3%, 50.7%, 0%, 45.1%)
CIE-LAB	lab(30.42, 13.08, -43.49)
CIE-LCH	lch(30.42, 45.41, 286.74°)
OKLab	oklab(40.45% -0.0201 -0.125)
OKLCH	oklch(40.45% 0.127 260.9)
XYZ	xyz(7.3667, 6.4101, 25.6549)
Luminance	0.0641 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D458C #8C641D

analogous

#1D7C8C #1D458C #2C1D8C

triadic

#1D458C #8C1D45 #458C1D

tetradic

#1D458C #8C1D7C #8C641D #1D8C2C

square

#1D458C #8C1D7C #8C641D #1D8C2C

split-complementary

#1D458C #8C2C1D #7C8C1D

monochromatic

#081327 #122C59 #1D458C #285EBF #4A7ED9

Accessibility & contrast

On white

9.20

#1D458C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#1D458C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D458C

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D458C	#FFFFFF	#000000	##FFFFFF
##1D458C	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)

#1B4D8F

Deuteranopia (green-blind)

#00438B

Tritanopia (blue-blind)

#005662

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1d458c;
/* rgb */ color: rgb(29, 69, 140);
/* oklch */ color: oklch(40.5% 0.127 260.9);

Tailwind

colors: {
  custom: {
    50: '#6b78ae',
    500: '#1d458c',
    950: '#000000',
  },
}

SCSS

$custom: #1d458c;
$custom-light: #6b78ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d458c",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 140
  },
  "hsl": {
    "h": 218.378,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.40451,
    "c": 0.12665,
    "h": 260.9
  },
  "luminance": 0.06411
}

Semantic roles & 50–950 ramp

primary

#1D458C

secondary

#BC9249

accent

#AC3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1D458C

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

Preview Lab → · Contrast checker → · Palette generator →