#1D499B#1D499B

#1D499B is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.5% C 0.143 H 261.4°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#1D499B
RGB	rgb(29, 73, 155)
HSL	hsl(219, 68%, 36%)
HSV	hsv(219, 81%, 61%)
CMYK	cmyk(81.3%, 52.9%, 0%, 39.2%)
CIE-LAB	lab(32.68, 16.39, -48.99)
CIE-LCH	lch(32.68, 51.66, 288.49°)
OKLab	oklab(42.52% -0.0213 -0.1412)
OKLCH	oklch(42.52% 0.143 261.4)
XYZ	xyz(8.8035, 7.3918, 31.9668)
Luminance	0.0739 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D499B #9B6F1D

analogous

#1D889B #1D499B #301D9B

triadic

#1D499B #9B1D49 #499B1D

tetradic

#1D499B #9B1D88 #9B6F1D #1D9B30

square

#1D499B #9B1D88 #9B6F1D #1D9B30

split-complementary

#1D499B #9B301D #889B1D

monochromatic

#0A1834 #133167 #1D499B #2761CF #5384DF

Accessibility & contrast

On white

8.47

#1D499B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#1D499B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D499B

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D499B	#FFFFFF	#000000	##FFFFFF
##1D499B	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F539E

Deuteranopia (green-blind)

#004799

Tritanopia (blue-blind)

#005D6B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1d499b;
/* rgb */ color: rgb(29, 73, 155);
/* oklch */ color: oklch(42.5% 0.143 261.4);

Tailwind

colors: {
  custom: {
    50: '#6e7bb9',
    500: '#1d499b',
    950: '#000000',
  },
}

SCSS

$custom: #1d499b;
$custom-light: #6e7bb9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d499b",
  "rgb": {
    "r": 29,
    "g": 73,
    "b": 155
  },
  "hsl": {
    "h": 219.048,
    "s": 68.478,
    "l": 36.078
  },
  "oklch": {
    "l": 0.42523,
    "c": 0.14275,
    "h": 261.4
  },
  "luminance": 0.07393
}

Semantic roles & 50–950 ramp

primary

#1D499B

secondary

#C29B52

accent

#AE3CEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1D499B

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

Preview Lab → · Contrast checker → · Palette generator →