#1F489A#1F489A

#1F489A is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.3% C 0.142 H 262.2°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#1F489A
RGB	rgb(31, 72, 154)
HSL	hsl(220, 66%, 36%)
HSV	hsv(220, 80%, 60%)
CMYK	cmyk(79.9%, 53.2%, 0%, 39.6%)
CIE-LAB	lab(32.39, 16.88, -48.86)
CIE-LCH	lch(32.39, 51.69, 289.06°)
OKLab	oklab(42.29% -0.0193 -0.1408)
OKLCH	oklch(42.29% 0.142 262.2)
XYZ	xyz(8.7131, 7.2581, 31.5073)
Luminance	0.0726 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F489A #9A711F

analogous

#1F869A #1F489A #341F9A

triadic

#1F489A #9A1F48 #489A1F

tetradic

#1F489A #9A1F86 #9A711F #1F9A34

square

#1F489A #9A1F86 #9A711F #1F9A34

split-complementary

#1F489A #9A341F #869A1F

monochromatic

#0A1834 #153067 #1F489A #2960CD #5683DD

Accessibility & contrast

On white

8.57

#1F489A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1F489A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F489A

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F489A	#FFFFFF	#000000	##FFFFFF
##1F489A	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D529D

Deuteranopia (green-blind)

#004798

Tritanopia (blue-blind)

#005C6A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1f489a;
/* rgb */ color: rgb(31, 72, 154);
/* oklch */ color: oklch(42.3% 0.142 262.2);

Tailwind

colors: {
  custom: {
    50: '#6f7ab8',
    500: '#1f489a',
    950: '#000000',
  },
}

SCSS

$custom: #1f489a;
$custom-light: #6f7ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f489a",
  "rgb": {
    "r": 31,
    "g": 72,
    "b": 154
  },
  "hsl": {
    "h": 220,
    "s": 66.486,
    "l": 36.275
  },
  "oklch": {
    "l": 0.42293,
    "c": 0.14207,
    "h": 262.2
  },
  "luminance": 0.07259
}

Semantic roles & 50–950 ramp

primary

#1F489A

secondary

#C19C54

accent

#B03EE9

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F489A

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

Preview Lab → · Contrast checker → · Palette generator →