#1D2B5A#1D2B5A

#1D2B5A is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.5% C 0.086 H 268.4°. Best body text is #FFFFFF at 13.59:1 contrast (WCAG AA passes).

Color values

HEX	#1D2B5A
RGB	rgb(29, 43, 90)
HSL	hsl(226, 51%, 23%)
HSV	hsv(226, 68%, 35%)
CMYK	cmyk(67.8%, 52.2%, 0%, 64.7%)
CIE-LAB	lab(18.92, 11.21, -30.12)
CIE-LCH	lch(18.92, 32.14, 290.42°)
OKLab	oklab(30.51% -0.0023 -0.0862)
OKLCH	oklch(30.51% 0.086 268.4)
XYZ	xyz(3.2154, 2.7269, 10.0278)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2B5A #5A4C1D

analogous

#1D495A #1D2B5A #2D1D5A

triadic

#1D2B5A #5A1D2B #2B5A1D

tetradic

#1D2B5A #5A1D49 #5A4C1D #1D5A2D

square

#1D2B5A #5A1D49 #5A4C1D #1D5A2D

split-complementary

#1D2B5A #5A2D1D #495A1D

monochromatic

#070B17 #0E152C #1D2B5A #2C4188 #3B57B7

Accessibility & contrast

On white

13.59

#1D2B5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1D2B5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2B5A

13.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2B5A	#FFFFFF	#000000	##FFFFFF
##1D2B5A	1.00	13.59	1.55	13.59
#FFFFFF	13.59	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13315C

Deuteranopia (green-blind)

#072B59

Tritanopia (blue-blind)

#00363E

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1d2b5a;
/* rgb */ color: rgb(29, 43, 90);
/* oklch */ color: oklch(30.5% 0.086 268.4);

Tailwind

colors: {
  custom: {
    50: '#606389',
    500: '#1d2b5a',
    950: '#000000',
  },
}

SCSS

$custom: #1d2b5a;
$custom-light: #606389;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2b5a",
  "rgb": {
    "r": 29,
    "g": 43,
    "b": 90
  },
  "hsl": {
    "h": 226.23,
    "s": 51.261,
    "l": 23.333
  },
  "oklch": {
    "l": 0.30507,
    "c": 0.08622,
    "h": 268.4
  },
  "luminance": 0.02727
}

Semantic roles & 50–950 ramp

primary

#1D2B5A

secondary

#8F7E44

accent

#BA4DDB

background

#F5F5F8

surface

#EAEAF0

border

#C6C6CB

text

#05050B

muted

#79797C

Preview Lab

Preview with #1D2B5A

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

Preview Lab → · Contrast checker → · Palette generator →