#1D3EA1#1D3EA1

#1D3EA1 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.7% C 0.165 H 265.3°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#1D3EA1
RGB	rgb(29, 62, 161)
HSL	hsl(225, 69%, 37%)
HSV	hsv(225, 82%, 63%)
CMYK	cmyk(82%, 61.5%, 0%, 36.9%)
CIE-LAB	lab(30.10, 26.26, -56.81)
CIE-LCH	lch(30.10, 62.59, 294.81°)
OKLab	oklab(40.73% -0.0134 -0.1643)
OKLCH	oklch(40.73% 0.165 265.3)
XYZ	xyz(8.6601, 6.2786, 34.4668)
Luminance	0.0628 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3EA1 #A1801D

analogous

#1D80A1 #1D3EA1 #3E1DA1

triadic

#1D3EA1 #A11D3E #3EA11D

tetradic

#1D3EA1 #A11D80 #A1801D #1DA13E

square

#1D3EA1 #A11D80 #A1801D #1DA13E

split-complementary

#1D3EA1 #A13E1D #80A11D

monochromatic

#0A1639 #142A6D #1D3EA1 #2652D5 #587AE1

Accessibility & contrast

On white

9.31

#1D3EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1D3EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3EA1

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3EA1	#FFFFFF	#000000	##FFFFFF
##1D3EA1	1.00	9.31	2.26	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA4

Deuteranopia (green-blind)

#00419F

Tritanopia (blue-blind)

#005869

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1d3ea1;
/* rgb */ color: rgb(29, 62, 161);
/* oklch */ color: oklch(40.7% 0.165 265.3);

Tailwind

colors: {
  custom: {
    50: '#7172be',
    500: '#1d3ea1',
    950: '#000000',
  },
}

SCSS

$custom: #1d3ea1;
$custom-light: #7172be;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3ea1",
  "rgb": {
    "r": 29,
    "g": 62,
    "b": 161
  },
  "hsl": {
    "h": 225,
    "s": 69.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.4073,
    "c": 0.16489,
    "h": 265.3
  },
  "luminance": 0.0628
}

Semantic roles & 50–950 ramp

primary

#1D3EA1

secondary

#C4A955

accent

#C03CEC

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1D3EA1

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

Preview Lab → · Contrast checker → · Palette generator →