#1D2589#1D2589

#1D2589 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.8% C 0.162 H 270.6°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#1D2589
RGB	rgb(29, 37, 137)
HSL	hsl(236, 65%, 33%)
HSV	hsv(236, 79%, 54%)
CMYK	cmyk(78.8%, 73%, 0%, 46.3%)
CIE-LAB	lab(21.54, 33.69, -56.11)
CIE-LCH	lch(21.54, 65.45, 300.98°)
OKLab	oklab(33.76% 0.0016 -0.1625)
OKLCH	oklch(33.76% 0.162 270.6)
XYZ	xyz(5.6821, 3.3899, 24.0169)
Luminance	0.0339 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2589 #89811D

analogous

#1D5B89 #1D2589 #4B1D89

triadic

#1D2589 #891D25 #25891D

tetradic

#1D2589 #891D5B #89811D #1D894B

square

#1D2589 #891D5B #89811D #1D894B

split-complementary

#1D2589 #894B1D #5B891D

monochromatic

#080A24 #121756 #1D2589 #2833BC #4853D8

Accessibility & contrast

On white

12.51

#1D2589 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1D2589 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2589

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2589	#FFFFFF	#000000	##FFFFFF
##1D2589	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398C

Deuteranopia (green-blind)

#002E87

Tritanopia (blue-blind)

#004154

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d2589;
/* rgb */ color: rgb(29, 37, 137);
/* oklch */ color: oklch(33.8% 0.162 270.6);

Tailwind

colors: {
  custom: {
    50: '#6d60ac',
    500: '#1d2589',
    950: '#000000',
  },
}

SCSS

$custom: #1d2589;
$custom-light: #6d60ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2589",
  "rgb": {
    "r": 29,
    "g": 37,
    "b": 137
  },
  "hsl": {
    "h": 235.556,
    "s": 65.06,
    "l": 32.549
  },
  "oklch": {
    "l": 0.33757,
    "c": 0.16248,
    "h": 270.6
  },
  "luminance": 0.0339
}

Semantic roles & 50–950 ramp

primary

#1D2589

secondary

#BAB247

accent

#DC40E8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1D2589

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

Preview Lab → · Contrast checker → · Palette generator →