#1B489E#1B489E

#1B489E is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.5% C 0.149 H 261.7°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#1B489E
RGB	rgb(27, 72, 158)
HSL	hsl(219, 71%, 36%)
HSV	hsv(219, 83%, 62%)
CMYK	cmyk(82.9%, 54.4%, 0%, 38%)
CIE-LAB	lab(32.56, 18.07, -51.01)
CIE-LCH	lch(32.56, 54.12, 289.51°)
OKLab	oklab(42.48% -0.0215 -0.1471)
OKLCH	oklch(42.48% 0.149 261.7)
XYZ	xyz(8.9387, 7.3353, 33.2859)
Luminance	0.0734 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B489E #9E711B

analogous

#1B8A9E #1B489E #2F1B9E

triadic

#1B489E #9E1B48 #489E1B

tetradic

#1B489E #9E1B8A #9E711B #1B9E2F

square

#1B489E #9E1B8A #9E711B #1B9E2F

split-complementary

#1B489E #9E2F1B #8A9E1B

monochromatic

#091835 #12306A #1B489E #2460D2 #5283E1

Accessibility & contrast

On white

8.51

#1B489E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1B489E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B489E

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B489E	#FFFFFF	#000000	##FFFFFF
##1B489E	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A1

Deuteranopia (green-blind)

#00479C

Tritanopia (blue-blind)

#005D6C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b489e;
/* rgb */ color: rgb(27, 72, 158);
/* oklch */ color: oklch(42.5% 0.149 261.7);

Tailwind

colors: {
  custom: {
    50: '#6f7abb',
    500: '#1b489e',
    950: '#000000',
  },
}

SCSS

$custom: #1b489e;
$custom-light: #6f7abb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b489e",
  "rgb": {
    "r": 27,
    "g": 72,
    "b": 158
  },
  "hsl": {
    "h": 219.389,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.42481,
    "c": 0.1487,
    "h": 261.7
  },
  "luminance": 0.07336
}

Semantic roles & 50–950 ramp

primary

#1B489E

secondary

#C49C51

accent

#B03AEE

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1B489E

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

Preview Lab → · Contrast checker → · Palette generator →