#1D3993#1D3993

#1D3993 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.152 H 266.0°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#1D3993
RGB	rgb(29, 57, 147)
HSL	hsl(226, 67%, 35%)
HSV	hsv(226, 80%, 58%)
CMYK	cmyk(80.3%, 61.2%, 0%, 42.4%)
CIE-LAB	lab(27.55, 24.16, -52.45)
CIE-LCH	lch(27.55, 57.75, 294.74°)
OKLab	oklab(38.46% -0.0105 -0.1516)
OKLCH	oklch(38.46% 0.152 266)
XYZ	xyz(7.2344, 5.2932, 28.2385)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3993 #93771D

analogous

#1D7493 #1D3993 #3C1D93

triadic

#1D3993 #931D39 #39931D

tetradic

#1D3993 #931D74 #93771D #1D933C

square

#1D3993 #931D74 #93771D #1D933C

split-complementary

#1D3993 #933C1D #74931D

monochromatic

#09112D #132560 #1D3993 #274DC6 #4E70DC

Accessibility & contrast

On white

10.20

#1D3993 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1D3993 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3993

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3993	#FFFFFF	#000000	##FFFFFF
##1D3993	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004796

Deuteranopia (green-blind)

#003C91

Tritanopia (blue-blind)

#005060

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1d3993;
/* rgb */ color: rgb(29, 57, 147);
/* oklch */ color: oklch(38.5% 0.152 266.0);

Tailwind

colors: {
  custom: {
    50: '#6e6fb3',
    500: '#1d3993',
    950: '#000000',
  },
}

SCSS

$custom: #1d3993;
$custom-light: #6e6fb3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3993",
  "rgb": {
    "r": 29,
    "g": 57,
    "b": 147
  },
  "hsl": {
    "h": 225.763,
    "s": 67.045,
    "l": 34.51
  },
  "oklch": {
    "l": 0.38455,
    "c": 0.15198,
    "h": 266
  },
  "luminance": 0.05294
}

Semantic roles & 50–950 ramp

primary

#1D3993

secondary

#BFA44D

accent

#C13EEA

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1D3993

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

Preview Lab → · Contrast checker → · Palette generator →