#1D318E#1D318E

#1D318E is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.4% C 0.155 H 268.0°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#1D318E
RGB	rgb(29, 49, 142)
HSL	hsl(229, 66%, 34%)
HSV	hsv(229, 80%, 56%)
CMYK	cmyk(79.6%, 65.5%, 0%, 44.3%)
CIE-LAB	lab(24.98, 27.67, -53.57)
CIE-LCH	lch(24.98, 60.29, 297.32°)
OKLab	oklab(36.41% -0.0054 -0.155)
OKLCH	oklch(36.41% 0.155 268)
XYZ	xyz(6.4858, 4.4101, 26.0954)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D318E #8E7A1D

analogous

#1D698E #1D318E #421D8E

triadic

#1D318E #8E1D31 #318E1D

tetradic

#1D318E #8E1D69 #8E7A1D #1D8E42

square

#1D318E #8E1D69 #8E7A1D #1D8E42

split-complementary

#1D318E #8E421D #698E1D

monochromatic

#080E28 #131F5B #1D318E #2743C1 #4B64DA

Accessibility & contrast

On white

11.16

#1D318E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1D318E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D318E

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D318E	#FFFFFF	#000000	##FFFFFF
##1D318E	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004191

Deuteranopia (green-blind)

#00368C

Tritanopia (blue-blind)

#004A5B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1d318e;
/* rgb */ color: rgb(29, 49, 142);
/* oklch */ color: oklch(36.4% 0.155 268.0);

Tailwind

colors: {
  custom: {
    50: '#6d69b0',
    500: '#1d318e',
    950: '#000000',
  },
}

SCSS

$custom: #1d318e;
$custom-light: #6d69b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d318e",
  "rgb": {
    "r": 29,
    "g": 49,
    "b": 142
  },
  "hsl": {
    "h": 229.381,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.36412,
    "c": 0.15509,
    "h": 268
  },
  "luminance": 0.04411
}

Semantic roles & 50–950 ramp

primary

#1D318E

secondary

#BDA84A

accent

#CB3FE9

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1D318E

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

Preview Lab → · Contrast checker → · Palette generator →