#1D358E#1D358E

#1D358E is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.2% C 0.150 H 267.0°. Best body text is #FFFFFF at 10.76:1 contrast (WCAG AA passes).

Color values

HEX	#1D358E
RGB	rgb(29, 53, 142)
HSL	hsl(227, 66%, 34%)
HSV	hsv(227, 80%, 56%)
CMYK	cmyk(79.6%, 62.7%, 0%, 44.3%)
CIE-LAB	lab(26.04, 24.94, -51.84)
CIE-LCH	lch(26.04, 57.53, 295.69°)
OKLab	oklab(37.19% -0.008 -0.1499)
OKLCH	oklch(37.19% 0.15 267)
XYZ	xyz(6.6606, 4.7597, 26.1536)
Luminance	0.0476 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D358E #8E761D

analogous

#1D6D8E #1D358E #3D1D8E

triadic

#1D358E #8E1D35 #358E1D

tetradic

#1D358E #8E1D6D #8E761D #1D8E3D

square

#1D358E #8E1D6D #8E761D #1D8E3D

split-complementary

#1D358E #8E3D1D #6D8E1D

monochromatic

#080F28 #13225B #1D358E #2748C1 #4B6ADA

Accessibility & contrast

On white

10.76

#1D358E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1D358E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D358E

10.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D358E	#FFFFFF	#000000	##FFFFFF
##1D358E	1.00	10.76	1.95	10.76
#FFFFFF	10.76	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004391

Deuteranopia (green-blind)

#00388C

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1d358e;
/* rgb */ color: rgb(29, 53, 142);
/* oklch */ color: oklch(37.2% 0.150 267.0);

Tailwind

colors: {
  custom: {
    50: '#6d6cb0',
    500: '#1d358e',
    950: '#000000',
  },
}

SCSS

$custom: #1d358e;
$custom-light: #6d6cb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d358e",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 142
  },
  "hsl": {
    "h": 227.257,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.37192,
    "c": 0.1501,
    "h": 267
  },
  "luminance": 0.0476
}

Semantic roles & 50–950 ramp

primary

#1D358E

secondary

#BDA44A

accent

#C53FE9

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1D358E

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

Preview Lab → · Contrast checker → · Palette generator →