#1D2671#1D2671

#1D2671 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.5% C 0.128 H 271.5°. Best body text is #FFFFFF at 13.39:1 contrast (WCAG AA passes).

Color values

HEX	#1D2671
RGB	rgb(29, 38, 113)
HSL	hsl(234, 59%, 28%)
HSV	hsv(234, 74%, 44%)
CMYK	cmyk(74.3%, 66.4%, 0%, 55.7%)
CIE-LAB	lab(19.39, 23.94, -44.41)
CIE-LCH	lch(19.39, 50.45, 298.33°)
OKLab	oklab(31.46% 0.0033 -0.1283)
OKLCH	oklch(31.46% 0.128 271.5)
XYZ	xyz(4.1794, 2.8393, 15.9474)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2671 #71681D

analogous

#1D5071 #1D2671 #3E1D71

triadic

#1D2671 #711D26 #26711D

tetradic

#1D2671 #711D50 #71681D #1D713E

square

#1D2671 #711D50 #71681D #1D713E

split-complementary

#1D2671 #713E1D #50711D

monochromatic

#060818 #111640 #1D2671 #2936A2 #3C4BCD

Accessibility & contrast

On white

13.39

#1D2671 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1D2671 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2671

13.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2671	#FFFFFF	#000000	##FFFFFF
##1D2671	1.00	13.39	1.57	13.39
#FFFFFF	13.39	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003373

Deuteranopia (green-blind)

#002B70

Tritanopia (blue-blind)

#003947

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1d2671;
/* rgb */ color: rgb(29, 38, 113);
/* oklch */ color: oklch(31.5% 0.128 271.5);

Tailwind

colors: {
  custom: {
    50: '#66609b',
    500: '#1d2671',
    950: '#000000',
  },
}

SCSS

$custom: #1d2671;
$custom-light: #66609b;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2671",
  "rgb": {
    "r": 29,
    "g": 38,
    "b": 113
  },
  "hsl": {
    "h": 233.571,
    "s": 59.155,
    "l": 27.843
  },
  "oklch": {
    "l": 0.31463,
    "c": 0.1283,
    "h": 271.5
  },
  "luminance": 0.0284
}

Semantic roles & 50–950 ramp

primary

#1D2671

secondary

#A59B44

accent

#D245E2

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07050E

muted

#7A797E

Preview Lab

Preview with #1D2671

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

Preview Lab → · Contrast checker → · Palette generator →