#1D2575#1D2575

#1D2575 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.7% C 0.135 H 271.6°. Best body text is #FFFFFF at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#1D2575
RGB	rgb(29, 37, 117)
HSL	hsl(235, 60%, 29%)
HSV	hsv(235, 75%, 46%)
CMYK	cmyk(75.2%, 68.4%, 0%, 54.1%)
CIE-LAB	lab(19.51, 26.18, -46.79)
CIE-LCH	lch(19.51, 53.61, 299.23°)
OKLab	oklab(31.67% 0.0038 -0.1352)
OKLCH	oklch(31.67% 0.135 271.6)
XYZ	xyz(4.3781, 2.8683, 17.1491)
Luminance	0.0287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2575 #756D1D

analogous

#1D5175 #1D2575 #411D75

triadic

#1D2575 #751D25 #25751D

tetradic

#1D2575 #751D51 #756D1D #1D7541

square

#1D2575 #751D51 #756D1D #1D7541

split-complementary

#1D2575 #75411D #51751D

monochromatic

#060819 #111544 #1D2575 #2935A6 #3D4BCF

Accessibility & contrast

On white

13.34

#1D2575 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1D2575 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2575

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2575	#FFFFFF	#000000	##FFFFFF
##1D2575	1.00	13.34	1.57	13.34
#FFFFFF	13.34	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003378

Deuteranopia (green-blind)

#002B73

Tritanopia (blue-blind)

#003A49

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1d2575;
/* rgb */ color: rgb(29, 37, 117);
/* oklch */ color: oklch(31.7% 0.135 271.6);

Tailwind

colors: {
  custom: {
    50: '#675f9e',
    500: '#1d2575',
    950: '#000000',
  },
}

SCSS

$custom: #1d2575;
$custom-light: #675f9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2575",
  "rgb": {
    "r": 29,
    "g": 37,
    "b": 117
  },
  "hsl": {
    "h": 234.545,
    "s": 60.274,
    "l": 28.627
  },
  "oklch": {
    "l": 0.31668,
    "c": 0.13528,
    "h": 271.6
  },
  "luminance": 0.02869
}

Semantic roles & 50–950 ramp

primary

#1D2575

secondary

#A9A045

accent

#D544E3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1D2575

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

Preview Lab → · Contrast checker → · Palette generator →