#1D2970#1D2970

#1D2970 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.0% C 0.123 H 270.5°. Best body text is #FFFFFF at 13.10:1 contrast (WCAG AA passes).

Color values

HEX	#1D2970
RGB	rgb(29, 41, 112)
HSL	hsl(231, 59%, 28%)
HSV	hsv(231, 74%, 44%)
CMYK	cmyk(74.1%, 63.4%, 0%, 56.1%)
CIE-LAB	lab(20.11, 21.45, -42.59)
CIE-LCH	lch(20.11, 47.68, 296.73°)
OKLab	oklab(31.97% 0.001 -0.1229)
OKLCH	oklch(31.97% 0.123 270.5)
XYZ	xyz(4.2233, 3.0165, 15.6858)
Luminance	0.0302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2970 #70641D

analogous

#1D5370 #1D2970 #3A1D70

triadic

#1D2970 #701D29 #29701D

tetradic

#1D2970 #701D53 #70641D #1D703A

square

#1D2970 #701D53 #70641D #1D703A

split-complementary

#1D2970 #703A1D #53701D

monochromatic

#060918 #10173F #1D2970 #2A3BA1 #3B50CC

Accessibility & contrast

On white

13.10

#1D2970 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1D2970 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2970

13.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2970	#FFFFFF	#000000	##FFFFFF
##1D2970	1.00	13.10	1.60	13.10
#FFFFFF	13.10	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003472

Deuteranopia (green-blind)

#002D6F

Tritanopia (blue-blind)

#003B48

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d2970;
/* rgb */ color: rgb(29, 41, 112);
/* oklch */ color: oklch(32.0% 0.123 270.5);

Tailwind

colors: {
  custom: {
    50: '#66629a',
    500: '#1d2970',
    950: '#000000',
  },
}

SCSS

$custom: #1d2970;
$custom-light: #66629a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2970",
  "rgb": {
    "r": 29,
    "g": 41,
    "b": 112
  },
  "hsl": {
    "h": 231.325,
    "s": 58.865,
    "l": 27.647
  },
  "oklch": {
    "l": 0.31967,
    "c": 0.12288,
    "h": 270.5
  },
  "luminance": 0.03017
}

Semantic roles & 50–950 ramp

primary

#1D2970

secondary

#A49644

accent

#CB46E2

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1D2970

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

Preview Lab → · Contrast checker → · Palette generator →