#1D3170#1D3170

#1D3170 is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.7% C 0.112 H 266.9°. Best body text is #FFFFFF at 12.17:1 contrast (WCAG AA passes).

Color values

HEX	#1D3170
RGB	rgb(29, 49, 112)
HSL	hsl(226, 59%, 28%)
HSV	hsv(226, 74%, 44%)
CMYK	cmyk(74.1%, 56.3%, 0%, 56.1%)
CIE-LAB	lab(22.40, 15.75, -38.87)
CIE-LCH	lch(22.40, 41.94, 292.06°)
OKLab	oklab(33.68% -0.006 -0.1118)
OKLCH	oklch(33.68% 0.112 266.9)
XYZ	xyz(4.5286, 3.6272, 15.7876)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3170 #705C1D

analogous

#1D5A70 #1D3170 #321D70

triadic

#1D3170 #701D31 #31701D

tetradic

#1D3170 #701D5A #705C1D #1D7032

square

#1D3170 #701D5A #705C1D #1D7032

split-complementary

#1D3170 #70321D #5A701D

monochromatic

#060B18 #101C3F #1D3170 #2A46A1 #3B5ECC

Accessibility & contrast

On white

12.17

#1D3170 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1D3170 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3170

12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3170	#FFFFFF	#000000	##FFFFFF
##1D3170	1.00	12.17	1.73	12.17
#FFFFFF	12.17	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#033A72

Deuteranopia (green-blind)

#00326F

Tritanopia (blue-blind)

#00404B

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d3170;
/* rgb */ color: rgb(29, 49, 112);
/* oklch */ color: oklch(33.7% 0.112 266.9);

Tailwind

colors: {
  custom: {
    50: '#65689a',
    500: '#1d3170',
    950: '#000000',
  },
}

SCSS

$custom: #1d3170;
$custom-light: #65689a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3170",
  "rgb": {
    "r": 29,
    "g": 49,
    "b": 112
  },
  "hsl": {
    "h": 225.542,
    "s": 58.865,
    "l": 27.647
  },
  "oklch": {
    "l": 0.3368,
    "c": 0.11199,
    "h": 266.9
  },
  "luminance": 0.03628
}

Semantic roles & 50–950 ramp

primary

#1D3170

secondary

#A48D44

accent

#BC46E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1D3170

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

Preview Lab → · Contrast checker → · Palette generator →