#1D227F#1D227F

#1D227F is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.2% C 0.153 H 271.7°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#1D227F
RGB	rgb(29, 34, 127)
HSL	hsl(237, 63%, 31%)
HSV	hsv(237, 77%, 50%)
CMYK	cmyk(77.2%, 73.2%, 0%, 50.2%)
CIE-LAB	lab(19.79, 31.93, -52.70)
CIE-LCH	lch(19.79, 61.62, 301.21°)
OKLab	oklab(32.18% 0.0045 -0.1525)
OKLCH	oklch(32.18% 0.153 271.7)
XYZ	xyz(4.9082, 2.9371, 20.3828)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D227F #7F7A1D

analogous

#1D537F #1D227F #491D7F

triadic

#1D227F #7F1D22 #227F1D

tetradic

#1D227F #7F1D53 #7F7A1D #1D7F49

square

#1D227F #7F1D53 #7F7A1D #1D7F49

split-complementary

#1D227F #7F491D #537F1D

monochromatic

#06071B #12154D #1D227F #282FB1 #424AD4

Accessibility & contrast

On white

13.23

#1D227F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1D227F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D227F

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D227F	#FFFFFF	#000000	##FFFFFF
##1D227F	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003582

Deuteranopia (green-blind)

#002B7D

Tritanopia (blue-blind)

#003C4E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1d227f;
/* rgb */ color: rgb(29, 34, 127);
/* oklch */ color: oklch(32.2% 0.153 271.7);

Tailwind

colors: {
  custom: {
    50: '#6a5ea5',
    500: '#1d227f',
    950: '#000000',
  },
}

SCSS

$custom: #1d227f;
$custom-light: #6a5ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#1d227f",
  "rgb": {
    "r": 29,
    "g": 34,
    "b": 127
  },
  "hsl": {
    "h": 236.939,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.3218,
    "c": 0.15259,
    "h": 271.7
  },
  "luminance": 0.02938
}

Semantic roles & 50–950 ramp

primary

#1D227F

secondary

#B2AD45

accent

#DE42E6

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08040F

muted

#7A797F

Preview Lab

Preview with #1D227F

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

Preview Lab → · Contrast checker → · Palette generator →