#1D3071#1D3071

#1D3071 is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.5% C 0.115 H 267.5°. Best body text is #FFFFFF at 12.26:1 contrast (WCAG AA passes).

Color values

HEX	#1D3071
RGB	rgb(29, 48, 113)
HSL	hsl(226, 59%, 28%)
HSV	hsv(226, 74%, 44%)
CMYK	cmyk(74.3%, 57.5%, 0%, 55.7%)
CIE-LAB	lab(22.18, 16.87, -39.85)
CIE-LCH	lch(22.18, 43.28, 292.94°)
OKLab	oklab(33.54% -0.005 -0.1147)
OKLCH	oklch(33.54% 0.115 267.5)
XYZ	xyz(4.5432, 3.5669, 16.0686)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3071 #715E1D

analogous

#1D5A71 #1D3071 #341D71

triadic

#1D3071 #711D30 #30711D

tetradic

#1D3071 #711D5A #715E1D #1D7134

square

#1D3071 #711D5A #715E1D #1D7134

split-complementary

#1D3071 #71341D #5A711D

monochromatic

#060A18 #111B40 #1D3071 #2945A2 #3C5CCD

Accessibility & contrast

On white

12.26

#1D3071 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1D3071 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3071

12.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3071	#FFFFFF	#000000	##FFFFFF
##1D3071	1.00	12.26	1.71	12.26
#FFFFFF	12.26	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003973

Deuteranopia (green-blind)

#003170

Tritanopia (blue-blind)

#00404B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1d3071;
/* rgb */ color: rgb(29, 48, 113);
/* oklch */ color: oklch(33.5% 0.115 267.5);

Tailwind

colors: {
  custom: {
    50: '#65679a',
    500: '#1d3071',
    950: '#000000',
  },
}

SCSS

$custom: #1d3071;
$custom-light: #65679a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3071",
  "rgb": {
    "r": 29,
    "g": 48,
    "b": 113
  },
  "hsl": {
    "h": 226.429,
    "s": 59.155,
    "l": 27.843
  },
  "oklch": {
    "l": 0.33544,
    "c": 0.11486,
    "h": 267.5
  },
  "luminance": 0.03567
}

Semantic roles & 50–950 ramp

primary

#1D3071

secondary

#A58F44

accent

#BF45E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1D3071

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

Preview Lab → · Contrast checker → · Palette generator →