#1D1577#1D1577

#1D1577 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.3% C 0.156 H 274.6°. Best body text is #FFFFFF at 14.73:1 contrast (WCAG AA passes).

Color values

HEX	#1D1577
RGB	rgb(29, 21, 119)
HSL	hsl(245, 70%, 27%)
HSV	hsv(245, 82%, 47%)
CMYK	cmyk(75.6%, 82.4%, 0%, 53.3%)
CIE-LAB	lab(16.15, 36.83, -53.61)
CIE-LCH	lch(16.15, 65.04, 304.49°)
OKLab	oklab(29.33% 0.0125 -0.155)
OKLCH	oklch(29.33% 0.156 274.6)
XYZ	xyz(4.1035, 2.1290, 17.6439)
Luminance	0.0213 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1577 #6F7715

analogous

#153E77 #1D1577 #4E1577

triadic

#1D1577 #771D15 #15771D

tetradic

#1D1577 #77153E #6F7715 #15774E

square

#1D1577 #77153E #6F7715 #15774E

split-complementary

#1D1577 #774E15 #3E7715

monochromatic

#06051A #100C43 #1D1577 #2A1EAB #3B2DDA

Accessibility & contrast

On white

14.73

#1D1577 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1D1577 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1577

14.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1577	#FFFFFF	#000000	##FFFFFF
##1D1577	1.00	14.73	1.43	14.73
#FFFFFF	14.73	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C7A

Deuteranopia (green-blind)

#002475

Tritanopia (blue-blind)

#003346

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1d1577;
/* rgb */ color: rgb(29, 21, 119);
/* oklch */ color: oklch(29.3% 0.156 274.6);

Tailwind

colors: {
  custom: {
    50: '#6a559f',
    500: '#1d1577',
    950: '#000000',
  },
}

SCSS

$custom: #1d1577;
$custom-light: #6a559f;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1577",
  "rgb": {
    "r": 29,
    "g": 21,
    "b": 119
  },
  "hsl": {
    "h": 244.898,
    "s": 70,
    "l": 27.451
  },
  "oklch": {
    "l": 0.29334,
    "c": 0.15554,
    "h": 274.6
  },
  "luminance": 0.02129
}

Semantic roles & 50–950 ramp

primary

#1D1577

secondary

#A3AD3B

accent

#ED3BDE

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030F

muted

#7A787E

Preview Lab

Preview with #1D1577

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

Preview Lab → · Contrast checker → · Palette generator →