#1D2175#1D2175

#1D2175 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.9% C 0.140 H 272.7°. Best body text is #FFFFFF at 13.76:1 contrast (WCAG AA passes).

Color values

HEX	#1D2175
RGB	rgb(29, 33, 117)
HSL	hsl(237, 60%, 29%)
HSV	hsv(237, 75%, 46%)
CMYK	cmyk(75.2%, 71.8%, 0%, 54.1%)
CIE-LAB	lab(18.51, 28.87, -48.43)
CIE-LCH	lch(18.51, 56.38, 300.80°)
OKLab	oklab(30.94% 0.0065 -0.14)
OKLCH	oklch(30.94% 0.14 272.7)
XYZ	xyz(4.2604, 2.6329, 17.1098)
Luminance	0.0263 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2175 #75711D

analogous

#1D4D75 #1D2175 #451D75

triadic

#1D2175 #751D21 #21751D

tetradic

#1D2175 #751D4D #75711D #1D7545

square

#1D2175 #751D4D #75711D #1D7545

split-complementary

#1D2175 #75451D #4D751D

monochromatic

#060719 #111344 #1D2175 #292FA6 #3D44CF

Accessibility & contrast

On white

13.76

#1D2175 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1D2175 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2175

13.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2175	#FFFFFF	#000000	##FFFFFF
##1D2175	1.00	13.76	1.53	13.76
#FFFFFF	13.76	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003178

Deuteranopia (green-blind)

#002973

Tritanopia (blue-blind)

#003848

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1d2175;
/* rgb */ color: rgb(29, 33, 117);
/* oklch */ color: oklch(30.9% 0.140 272.7);

Tailwind

colors: {
  custom: {
    50: '#685c9e',
    500: '#1d2175',
    950: '#000000',
  },
}

SCSS

$custom: #1d2175;
$custom-light: #685c9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2175",
  "rgb": {
    "r": 29,
    "g": 33,
    "b": 117
  },
  "hsl": {
    "h": 237.273,
    "s": 60.274,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30942,
    "c": 0.14019,
    "h": 272.7
  },
  "luminance": 0.02633
}

Semantic roles & 50–950 ramp

primary

#1D2175

secondary

#A9A545

accent

#DC44E3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1D2175

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

Preview Lab → · Contrast checker → · Palette generator →