#1D2389#1D2389

#1D2389 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.4% C 0.165 H 270.9°. Best body text is #FFFFFF at 12.70:1 contrast (WCAG AA passes).

Color values

HEX	#1D2389
RGB	rgb(29, 35, 137)
HSL	hsl(237, 65%, 33%)
HSV	hsv(237, 79%, 54%)
CMYK	cmyk(78.8%, 74.5%, 0%, 46.3%)
CIE-LAB	lab(21.09, 34.94, -56.86)
CIE-LCH	lch(21.09, 66.74, 301.57°)
OKLab	oklab(33.43% 0.0026 -0.1646)
OKLCH	oklch(33.43% 0.165 270.9)
XYZ	xyz(5.6215, 3.2688, 23.9967)
Luminance	0.0327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2389 #89831D

analogous

#1D5989 #1D2389 #4D1D89

triadic

#1D2389 #891D23 #23891D

tetradic

#1D2389 #891D59 #89831D #1D894D

square

#1D2389 #891D59 #89831D #1D894D

split-complementary

#1D2389 #894D1D #59891D

monochromatic

#080924 #121656 #1D2389 #2830BC #4850D8

Accessibility & contrast

On white

12.70

#1D2389 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1D2389 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2389

12.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2389	#FFFFFF	#000000	##FFFFFF
##1D2389	1.00	12.70	1.65	12.70
#FFFFFF	12.70	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388C

Deuteranopia (green-blind)

#002D87

Tritanopia (blue-blind)

#004054

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1d2389;
/* rgb */ color: rgb(29, 35, 137);
/* oklch */ color: oklch(33.4% 0.165 270.9);

Tailwind

colors: {
  custom: {
    50: '#6d5fad',
    500: '#1d2389',
    950: '#000000',
  },
}

SCSS

$custom: #1d2389;
$custom-light: #6d5fad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2389",
  "rgb": {
    "r": 29,
    "g": 35,
    "b": 137
  },
  "hsl": {
    "h": 236.667,
    "s": 65.06,
    "l": 32.549
  },
  "oklch": {
    "l": 0.33433,
    "c": 0.16465,
    "h": 270.9
  },
  "luminance": 0.03269
}

Semantic roles & 50–950 ramp

primary

#1D2389

secondary

#BAB447

accent

#DF40E8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D2389

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

Preview Lab → · Contrast checker → · Palette generator →