#1D2F8C#1D2F8C

#1D2F8C is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.8% C 0.155 H 268.5°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#1D2F8C
RGB	rgb(29, 47, 140)
HSL	hsl(230, 66%, 33%)
HSV	hsv(230, 79%, 55%)
CMYK	cmyk(79.3%, 66.4%, 0%, 45.1%)
CIE-LAB	lab(24.28, 28.25, -53.48)
CIE-LCH	lch(24.28, 60.48, 297.84°)
OKLab	oklab(35.84% -0.0041 -0.1547)
OKLCH	oklch(35.84% 0.155 268.5)
XYZ	xyz(6.2552, 4.1870, 25.2844)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2F8C #8C7A1D

analogous

#1D668C #1D2F8C #421D8C

triadic

#1D2F8C #8C1D2F #2F8C1D

tetradic

#1D2F8C #8C1D66 #8C7A1D #1D8C42

square

#1D2F8C #8C1D66 #8C7A1D #1D8C42

split-complementary

#1D2F8C #8C421D #668C1D

monochromatic

#080D27 #121E59 #1D2F8C #2840BF #4A61D9

Accessibility & contrast

On white

11.43

#1D2F8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1D2F8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2F8C

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2F8C	#FFFFFF	#000000	##FFFFFF
##1D2F8C	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8F

Deuteranopia (green-blind)

#00358A

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1d2f8c;
/* rgb */ color: rgb(29, 47, 140);
/* oklch */ color: oklch(35.8% 0.155 268.5);

Tailwind

colors: {
  custom: {
    50: '#6d67af',
    500: '#1d2f8c',
    950: '#000000',
  },
}

SCSS

$custom: #1d2f8c;
$custom-light: #6d67af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2f8c",
  "rgb": {
    "r": 29,
    "g": 47,
    "b": 140
  },
  "hsl": {
    "h": 230.27,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.35837,
    "c": 0.15481,
    "h": 268.5
  },
  "luminance": 0.04188
}

Semantic roles & 50–950 ramp

primary

#1D2F8C

secondary

#BCA949

accent

#CD3FE9

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1D2F8C

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

Preview Lab → · Contrast checker → · Palette generator →