#1D3E9F#1D3E9F

#1D3E9F is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.5% C 0.162 H 265.2°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#1D3E9F
RGB	rgb(29, 62, 159)
HSL	hsl(225, 69%, 37%)
HSV	hsv(225, 82%, 62%)
CMYK	cmyk(81.8%, 61%, 0%, 37.6%)
CIE-LAB	lab(29.93, 25.48, -55.88)
CIE-LCH	lch(29.93, 61.42, 294.51°)
OKLab	oklab(40.55% -0.0134 -0.1616)
OKLCH	oklch(40.55% 0.162 265.2)
XYZ	xyz(8.4851, 6.2087, 33.5454)
Luminance	0.0621 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3E9F #9F7E1D

analogous

#1D7F9F #1D3E9F #3D1D9F

triadic

#1D3E9F #9F1D3E #3E9F1D

tetradic

#1D3E9F #9F1D7F #9F7E1D #1D9F3D

square

#1D3E9F #9F1D7F #9F7E1D #1D9F3D

split-complementary

#1D3E9F #9F3D1D #7F9F1D

monochromatic

#0A1637 #142A6B #1D3E9F #2652D3 #5679E0

Accessibility & contrast

On white

9.37

#1D3E9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1D3E9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3E9F

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3E9F	#FFFFFF	#000000	##FFFFFF
##1D3E9F	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA2

Deuteranopia (green-blind)

#00419D

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1d3e9f;
/* rgb */ color: rgb(29, 62, 159);
/* oklch */ color: oklch(40.5% 0.162 265.2);

Tailwind

colors: {
  custom: {
    50: '#7072bc',
    500: '#1d3e9f',
    950: '#000000',
  },
}

SCSS

$custom: #1d3e9f;
$custom-light: #7072bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3e9f",
  "rgb": {
    "r": 29,
    "g": 62,
    "b": 159
  },
  "hsl": {
    "h": 224.769,
    "s": 69.149,
    "l": 36.863
  },
  "oklch": {
    "l": 0.40548,
    "c": 0.16217,
    "h": 265.2
  },
  "luminance": 0.0621
}

Semantic roles & 50–950 ramp

primary

#1D3E9F

secondary

#C4A754

accent

#BF3CEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1D3E9F

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

Preview Lab → · Contrast checker → · Palette generator →