#1B489A#1B489A

#1B489A is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.2% C 0.143 H 261.2°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#1B489A
RGB	rgb(27, 72, 154)
HSL	hsl(219, 70%, 35%)
HSV	hsv(219, 82%, 60%)
CMYK	cmyk(82.5%, 53.2%, 0%, 39.6%)
CIE-LAB	lab(32.26, 16.46, -49.08)
CIE-LCH	lch(32.26, 51.76, 288.54°)
OKLab	oklab(42.16% -0.0219 -0.1415)
OKLCH	oklch(42.16% 0.143 261.2)
XYZ	xyz(8.6000, 7.1998, 31.5020)
Luminance	0.0720 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B489A #9A6D1B

analogous

#1B879A #1B489A #2D1B9A

triadic

#1B489A #9A1B48 #489A1B

tetradic

#1B489A #9A1B87 #9A6D1B #1B9A2D

square

#1B489A #9A1B87 #9A6D1B #1B9A2D

split-complementary

#1B489A #9A2D1B #879A1B

monochromatic

#091732 #123066 #1B489A #2460CE #4F83E0

Accessibility & contrast

On white

8.61

#1B489A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#1B489A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B489A

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B489A	#FFFFFF	#000000	##FFFFFF
##1B489A	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C529D

Deuteranopia (green-blind)

#004698

Tritanopia (blue-blind)

#005C6A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b489a;
/* rgb */ color: rgb(27, 72, 154);
/* oklch */ color: oklch(42.2% 0.143 261.2);

Tailwind

colors: {
  custom: {
    50: '#6e7ab8',
    500: '#1b489a',
    950: '#000000',
  },
}

SCSS

$custom: #1b489a;
$custom-light: #6e7ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#1b489a",
  "rgb": {
    "r": 27,
    "g": 72,
    "b": 154
  },
  "hsl": {
    "h": 218.74,
    "s": 70.166,
    "l": 35.49
  },
  "oklch": {
    "l": 0.42157,
    "c": 0.14315,
    "h": 261.2
  },
  "luminance": 0.07201
}

Semantic roles & 50–950 ramp

primary

#1B489A

secondary

#C3994E

accent

#AE3BED

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B489A

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

Preview Lab → · Contrast checker → · Palette generator →