#1D2180#1D2180

#1D2180 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.1% C 0.155 H 271.8°. Best body text is #FFFFFF at 13.28:1 contrast (WCAG AA passes).

Color values

HEX	#1D2180
RGB	rgb(29, 33, 128)
HSL	hsl(238, 63%, 31%)
HSV	hsv(238, 77%, 50%)
CMYK	cmyk(77.3%, 74.2%, 0%, 49.8%)
CIE-LAB	lab(19.67, 32.93, -53.54)
CIE-LCH	lch(19.67, 62.85, 301.59°)
OKLab	oklab(32.12% 0.0049 -0.1549)
OKLCH	oklch(32.12% 0.155 271.8)
XYZ	xyz(4.9455, 2.9069, 20.7183)
Luminance	0.0291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2180 #807C1D

analogous

#1D5280 #1D2180 #4A1D80

triadic

#1D2180 #801D21 #21801D

tetradic

#1D2180 #801D52 #807C1D #1D804A

square

#1D2180 #801D52 #807C1D #1D804A

split-complementary

#1D2180 #804A1D #52801D

monochromatic

#06071C #12144E #1D2180 #282EB2 #4349D4

Accessibility & contrast

On white

13.28

#1D2180 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1D2180 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2180

13.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2180	#FFFFFF	#000000	##FFFFFF
##1D2180	1.00	13.28	1.58	13.28
#FFFFFF	13.28	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003483

Deuteranopia (green-blind)

#002B7E

Tritanopia (blue-blind)

#003C4E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1d2180;
/* rgb */ color: rgb(29, 33, 128);
/* oklch */ color: oklch(32.1% 0.155 271.8);

Tailwind

colors: {
  custom: {
    50: '#6b5da6',
    500: '#1d2180',
    950: '#000000',
  },
}

SCSS

$custom: #1d2180;
$custom-light: #6b5da6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2180",
  "rgb": {
    "r": 29,
    "g": 33,
    "b": 128
  },
  "hsl": {
    "h": 237.576,
    "s": 63.057,
    "l": 30.784
  },
  "oklch": {
    "l": 0.32124,
    "c": 0.15503,
    "h": 271.8
  },
  "luminance": 0.02907
}

Semantic roles & 50–950 ramp

primary

#1D2180

secondary

#B3AF45

accent

#DF42E6

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08040F

muted

#7A797F

Preview Lab

Preview with #1D2180

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

Preview Lab → · Contrast checker → · Palette generator →