#1D36A8#1D36A8

#1D36A8 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.9% C 0.184 H 267.1°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#1D36A8
RGB	rgb(29, 54, 168)
HSL	hsl(229, 71%, 39%)
HSV	hsv(229, 83%, 66%)
CMYK	cmyk(82.7%, 67.9%, 0%, 34.1%)
CIE-LAB	lab(28.71, 34.26, -63.32)
CIE-LCH	lch(28.71, 72.00, 298.42°)
OKLab	oklab(39.9% -0.0093 -0.1835)
OKLCH	oklch(39.9% 0.184 267.1)
XYZ	xyz(8.8913, 5.7256, 37.6747)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D36A8 #A88F1D

analogous

#1D7BA8 #1D36A8 #4A1DA8

triadic

#1D36A8 #A81D36 #36A81D

tetradic

#1D36A8 #A81D7B #A88F1D #1DA84A

square

#1D36A8 #A81D7B #A88F1D #1DA84A

split-complementary

#1D36A8 #A84A1D #7BA81D

monochromatic

#0B1440 #142574 #1D36A8 #2848DA #5C75E3

Accessibility & contrast

On white

9.79

#1D36A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1D36A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D36A8

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D36A8	#FFFFFF	#000000	##FFFFFF
##1D36A8	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAC

Deuteranopia (green-blind)

#003DA6

Tritanopia (blue-blind)

#00556A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1d36a8;
/* rgb */ color: rgb(29, 54, 168);
/* oklch */ color: oklch(39.9% 0.184 267.1);

Tailwind

colors: {
  custom: {
    50: '#736dc3',
    500: '#1d36a8',
    950: '#000000',
  },
}

SCSS

$custom: #1d36a8;
$custom-light: #736dc3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d36a8",
  "rgb": {
    "r": 29,
    "g": 54,
    "b": 168
  },
  "hsl": {
    "h": 229.209,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.39897,
    "c": 0.1837,
    "h": 267.1
  },
  "luminance": 0.05727
}

Semantic roles & 50–950 ramp

primary

#1D36A8

secondary

#C7B35A

accent

#CD3AED

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #1D36A8

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

Preview Lab → · Contrast checker → · Palette generator →