#1D488A#1D488A

#1D488A is a dark, moderate blue. Relative luminance 0.067; OKLCH L 41.0% C 0.120 H 259.0°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#1D488A
RGB	rgb(29, 72, 138)
HSL	hsl(216, 65%, 33%)
HSV	hsv(216, 79%, 54%)
CMYK	cmyk(79%, 47.8%, 0%, 45.9%)
CIE-LAB	lab(31.18, 10.21, -41.03)
CIE-LCH	lch(31.18, 42.28, 283.98°)
OKLab	oklab(40.99% -0.023 -0.1178)
OKLCH	oklch(40.99% 0.12 259)
XYZ	xyz(7.4098, 6.7301, 24.9483)
Luminance	0.0673 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D488A #8A5F1D

analogous

#1D7E8A #1D488A #281D8A

triadic

#1D488A #8A1D48 #488A1D

tetradic

#1D488A #8A1D7E #8A5F1D #1D8A28

square

#1D488A #8A1D7E #8A5F1D #1D8A28

split-complementary

#1D488A #8A281D #7E8A1D

monochromatic

#081325 #122E57 #1D488A #2862BD #4982D9

Accessibility & contrast

On white

8.95

#1D488A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#1D488A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D488A

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D488A	#FFFFFF	#000000	##FFFFFF
##1D488A	1.00	8.95	2.35	8.95
#FFFFFF	8.95	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#244F8C

Deuteranopia (green-blind)

#084589

Tritanopia (blue-blind)

#005862

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d488a;
/* rgb */ color: rgb(29, 72, 138);
/* oklch */ color: oklch(41.0% 0.120 259.0);

Tailwind

colors: {
  custom: {
    50: '#6a7aad',
    500: '#1d488a',
    950: '#000000',
  },
}

SCSS

$custom: #1d488a;
$custom-light: #6a7aad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d488a",
  "rgb": {
    "r": 29,
    "g": 72,
    "b": 138
  },
  "hsl": {
    "h": 216.33,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.40991,
    "c": 0.11998,
    "h": 259
  },
  "luminance": 0.06731
}

Semantic roles & 50–950 ramp

primary

#1D488A

secondary

#BB8E48

accent

#A640E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1D488A

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

Preview Lab → · Contrast checker → · Palette generator →