#1D488C#1D488C

#1D488C is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.1% C 0.123 H 259.4°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#1D488C
RGB	rgb(29, 72, 140)
HSL	hsl(217, 66%, 33%)
HSV	hsv(217, 79%, 55%)
CMYK	cmyk(79.3%, 48.6%, 0%, 45.1%)
CIE-LAB	lab(31.32, 11.02, -42.04)
CIE-LCH	lch(31.32, 43.46, 284.69°)
OKLab	oklab(41.14% -0.0226 -0.1207)
OKLCH	oklch(41.14% 0.123 259.4)
XYZ	xyz(7.5560, 6.7885, 25.7179)
Luminance	0.0679 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D488C #8C611D

analogous

#1D7F8C #1D488C #2A1D8C

triadic

#1D488C #8C1D48 #488C1D

tetradic

#1D488C #8C1D7F #8C611D #1D8C2A

square

#1D488C #8C1D7F #8C611D #1D8C2A

split-complementary

#1D488C #8C2A1D #7F8C1D

monochromatic

#081427 #122E59 #1D488C #2862BF #4A82D9

Accessibility & contrast

On white

8.91

#1D488C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#1D488C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D488C

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D488C	#FFFFFF	#000000	##FFFFFF
##1D488C	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224F8F

Deuteranopia (green-blind)

#02458B

Tritanopia (blue-blind)

#005863

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1d488c;
/* rgb */ color: rgb(29, 72, 140);
/* oklch */ color: oklch(41.1% 0.123 259.4);

Tailwind

colors: {
  custom: {
    50: '#6b7aae',
    500: '#1d488c',
    950: '#000000',
  },
}

SCSS

$custom: #1d488c;
$custom-light: #6b7aae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d488c",
  "rgb": {
    "r": 29,
    "g": 72,
    "b": 140
  },
  "hsl": {
    "h": 216.757,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.41139,
    "c": 0.12283,
    "h": 259.4
  },
  "luminance": 0.06789
}

Semantic roles & 50–950 ramp

primary

#1D488C

secondary

#BC8F49

accent

#A73FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1D488C

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

Preview Lab → · Contrast checker → · Palette generator →