#1D345B#1D345B

#1D345B is a dark, moderate blue. Relative luminance 0.035; OKLCH L 32.8% C 0.075 H 260.3°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#1D345B
RGB	rgb(29, 52, 91)
HSL	hsl(218, 52%, 24%)
HSV	hsv(218, 68%, 36%)
CMYK	cmyk(68.1%, 42.9%, 0%, 64.3%)
CIE-LAB	lab(21.84, 5.14, -26.10)
CIE-LCH	lch(21.84, 26.60, 281.15°)
OKLab	oklab(32.78% -0.0126 -0.0742)
OKLCH	oklch(32.78% 0.075 260.3)
XYZ	xyz(3.6223, 3.4722, 10.3748)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D345B #5B441D

analogous

#1D535B #1D345B #251D5B

triadic

#1D345B #5B1D34 #345B1D

tetradic

#1D345B #5B1D53 #5B441D #1D5B25

square

#1D345B #5B1D53 #5B441D #1D5B25

split-complementary

#1D345B #5B251D #535B1D

monochromatic

#070D17 #0E192D #1D345B #2C4F89 #3B69B8

Accessibility & contrast

On white

12.39

#1D345B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1D345B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D345B

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D345B	#FFFFFF	#000000	##FFFFFF
##1D345B	1.00	12.39	1.69	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23375D

Deuteranopia (green-blind)

#1A325A

Tritanopia (blue-blind)

#003D43

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d345b;
/* rgb */ color: rgb(29, 52, 91);
/* oklch */ color: oklch(32.8% 0.075 260.3);

Tailwind

colors: {
  custom: {
    50: '#606b89',
    500: '#1d345b',
    950: '#000000',
  },
}

SCSS

$custom: #1d345b;
$custom-light: #606b89;
$custom-dark: #000000;

JSON

{
  "hex": "#1d345b",
  "rgb": {
    "r": 29,
    "g": 52,
    "b": 91
  },
  "hsl": {
    "h": 217.742,
    "s": 51.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.32779,
    "c": 0.07532,
    "h": 260.3
  },
  "luminance": 0.03473
}

Semantic roles & 50–950 ramp

primary

#1D345B

secondary

#907444

accent

#A64DDB

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060B

muted

#797A7C

Preview Lab

Preview with #1D345B

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

Preview Lab → · Contrast checker → · Palette generator →