#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
RGBrgb(29, 43, 90)
HSLhsl(226, 51%, 23%)
HSVhsv(226, 68%, 35%)
CMYKcmyk(67.8%, 52.2%, 0%, 64.7%)
CIE-LABlab(18.92, 11.21, -30.12)
CIE-LCHlch(18.92, 32.14, 290.42°)
OKLaboklab(30.51% -0.0023 -0.0862)
OKLCHoklch(30.51% 0.086 268.4)
XYZxyz(3.2154, 2.7269, 10.0278)
Luminance0.0273 (WCAG relative)
Temperaturecool
Familyblue

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
##1D2B5A1.0013.591.5513.59
#FFFFFF13.591.0021.001.00
#0000001.5521.001.0021.00
##FFFFFF13.591.0021.001.00

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 →

#1D2B5A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva