#1D2E8F#1D2E8F

#1D2E8F is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.9% C 0.160 H 268.7°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#1D2E8F
RGB	rgb(29, 46, 143)
HSL	hsl(231, 66%, 34%)
HSV	hsv(231, 80%, 56%)
CMYK	cmyk(79.7%, 67.8%, 0%, 43.9%)
CIE-LAB	lab(24.31, 30.07, -55.29)
CIE-LCH	lch(24.31, 62.94, 298.54°)
OKLab	oklab(35.95% -0.0037 -0.16)
OKLCH	oklch(35.95% 0.16 268.7)
XYZ	xyz(6.4399, 4.1976, 26.4521)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2E8F #8F7E1D

analogous

#1D678F #1D2E8F #451D8F

triadic

#1D2E8F #8F1D2E #2E8F1D

tetradic

#1D2E8F #8F1D67 #8F7E1D #1D8F45

square

#1D2E8F #8F1D67 #8F7E1D #1D8F45

split-complementary

#1D2E8F #8F451D #678F1D

monochromatic

#080D29 #131E5C #1D2E8F #273EC2 #4C61DB

Accessibility & contrast

On white

11.42

#1D2E8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1D2E8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2E8F

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2E8F	#FFFFFF	#000000	##FFFFFF
##1D2E8F	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F92

Deuteranopia (green-blind)

#00348D

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1d2e8f;
/* rgb */ color: rgb(29, 46, 143);
/* oklch */ color: oklch(35.9% 0.160 268.7);

Tailwind

colors: {
  custom: {
    50: '#6d66b1',
    500: '#1d2e8f',
    950: '#000000',
  },
}

SCSS

$custom: #1d2e8f;
$custom-light: #6d66b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2e8f",
  "rgb": {
    "r": 29,
    "g": 46,
    "b": 143
  },
  "hsl": {
    "h": 231.053,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.3595,
    "c": 0.16008,
    "h": 268.7
  },
  "luminance": 0.04198
}

Semantic roles & 50–950 ramp

primary

#1D2E8F

secondary

#BDAC4B

accent

#D03FE9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1D2E8F

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

Preview Lab → · Contrast checker → · Palette generator →