#1D41A8#1D41A8

#1D41A8 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.0% C 0.171 H 264.9°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#1D41A8
RGB	rgb(29, 65, 168)
HSL	hsl(224, 71%, 39%)
HSV	hsv(224, 83%, 66%)
CMYK	cmyk(82.7%, 61.3%, 0%, 34.1%)
CIE-LAB	lab(31.50, 26.98, -58.74)
CIE-LCH	lch(31.50, 64.64, 294.67°)
OKLab	oklab(41.96% -0.0151 -0.1699)
OKLCH	oklch(41.96% 0.171 264.9)
XYZ	xyz(9.4624, 6.8678, 37.8651)
Luminance	0.0687 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D41A8 #A8841D

analogous

#1D86A8 #1D41A8 #3E1DA8

triadic

#1D41A8 #A81D41 #41A81D

tetradic

#1D41A8 #A81D86 #A8841D #1DA83E

square

#1D41A8 #A81D86 #A8841D #1DA83E

split-complementary

#1D41A8 #A83E1D #86A81D

monochromatic

#0B1940 #142D74 #1D41A8 #2856DA #5C7FE3

Accessibility & contrast

On white

8.85

#1D41A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1D41A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D41A8

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D41A8	#FFFFFF	#000000	##FFFFFF
##1D41A8	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AB

Deuteranopia (green-blind)

#0044A6

Tritanopia (blue-blind)

#005C6E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1d41a8;
/* rgb */ color: rgb(29, 65, 168);
/* oklch */ color: oklch(42.0% 0.171 264.9);

Tailwind

colors: {
  custom: {
    50: '#7275c3',
    500: '#1d41a8',
    950: '#000000',
  },
}

SCSS

$custom: #1d41a8;
$custom-light: #7275c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d41a8",
  "rgb": {
    "r": 29,
    "g": 65,
    "b": 168
  },
  "hsl": {
    "h": 224.46,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.41959,
    "c": 0.17061,
    "h": 264.9
  },
  "luminance": 0.06869
}

Semantic roles & 50–950 ramp

primary

#1D41A8

secondary

#C7AB5A

accent

#BF3AED

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090813

muted

#7B7B82

Preview Lab

Preview with #1D41A8

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

Preview Lab → · Contrast checker → · Palette generator →