#1D3594#1D3594

#1D3594 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.8% C 0.158 H 267.1°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#1D3594
RGB	rgb(29, 53, 148)
HSL	hsl(228, 67%, 35%)
HSV	hsv(228, 80%, 58%)
CMYK	cmyk(80.4%, 64.2%, 0%, 42%)
CIE-LAB	lab(26.58, 27.29, -54.66)
CIE-LCH	lch(26.58, 61.09, 296.53°)
OKLab	oklab(37.76% -0.008 -0.1582)
OKLCH	oklch(37.76% 0.158 267.1)
XYZ	xyz(7.1232, 4.9447, 28.5902)
Luminance	0.0495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3594 #947C1D

analogous

#1D7194 #1D3594 #401D94

triadic

#1D3594 #941D35 #35941D

tetradic

#1D3594 #941D71 #947C1D #1D9440

square

#1D3594 #941D71 #947C1D #1D9440

split-complementary

#1D3594 #94401D #71941D

monochromatic

#09102E #132361 #1D3594 #2747C7 #4F6BDC

Accessibility & contrast

On white

10.56

#1D3594 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#1D3594 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3594

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3594	#FFFFFF	#000000	##FFFFFF
##1D3594	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004597

Deuteranopia (green-blind)

#003992

Tritanopia (blue-blind)

#004E5F

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1d3594;
/* rgb */ color: rgb(29, 53, 148);
/* oklch */ color: oklch(37.8% 0.158 267.1);

Tailwind

colors: {
  custom: {
    50: '#6e6cb4',
    500: '#1d3594',
    950: '#000000',
  },
}

SCSS

$custom: #1d3594;
$custom-light: #6e6cb4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3594",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 148
  },
  "hsl": {
    "h": 227.899,
    "s": 67.232,
    "l": 34.706
  },
  "oklch": {
    "l": 0.37757,
    "c": 0.15835,
    "h": 267.1
  },
  "luminance": 0.04946
}

Semantic roles & 50–950 ramp

primary

#1D3594

secondary

#BFA84E

accent

#C73EEA

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1D3594

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

Preview Lab → · Contrast checker → · Palette generator →