#1D2870#1D2870

#1D2870 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.8% C 0.124 H 270.8°. Best body text is #FFFFFF at 13.21:1 contrast (WCAG AA passes).

Color values

HEX	#1D2870
RGB	rgb(29, 40, 112)
HSL	hsl(232, 59%, 28%)
HSV	hsv(232, 74%, 44%)
CMYK	cmyk(74.1%, 64.3%, 0%, 56.1%)
CIE-LAB	lab(19.84, 22.15, -43.03)
CIE-LCH	lch(19.84, 48.40, 297.24°)
OKLab	oklab(31.76% 0.0018 -0.1242)
OKLCH	oklch(31.76% 0.124 270.8)
XYZ	xyz(4.1891, 2.9482, 15.6744)
Luminance	0.0295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2870 #70651D

analogous

#1D5270 #1D2870 #3B1D70

triadic

#1D2870 #701D28 #28701D

tetradic

#1D2870 #701D52 #70651D #1D703B

square

#1D2870 #701D52 #70651D #1D703B

split-complementary

#1D2870 #703B1D #52701D

monochromatic

#060918 #10173F #1D2870 #2A39A1 #3B4ECC

Accessibility & contrast

On white

13.21

#1D2870 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1D2870 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2870

13.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2870	#FFFFFF	#000000	##FFFFFF
##1D2870	1.00	13.21	1.59	13.21
#FFFFFF	13.21	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003472

Deuteranopia (green-blind)

#002C6F

Tritanopia (blue-blind)

#003A48

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1d2870;
/* rgb */ color: rgb(29, 40, 112);
/* oklch */ color: oklch(31.8% 0.124 270.8);

Tailwind

colors: {
  custom: {
    50: '#66619a',
    500: '#1d2870',
    950: '#000000',
  },
}

SCSS

$custom: #1d2870;
$custom-light: #66619a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2870",
  "rgb": {
    "r": 29,
    "g": 40,
    "b": 112
  },
  "hsl": {
    "h": 232.048,
    "s": 58.865,
    "l": 27.647
  },
  "oklch": {
    "l": 0.31764,
    "c": 0.12421,
    "h": 270.8
  },
  "luminance": 0.02949
}

Semantic roles & 50–950 ramp

primary

#1D2870

secondary

#A49844

accent

#CD46E2

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1D2870

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

Preview Lab → · Contrast checker → · Palette generator →