#1F489C#1F489C

#1F489C is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.5% C 0.145 H 262.4°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#1F489C
RGB	rgb(31, 72, 156)
HSL	hsl(220, 67%, 37%)
HSV	hsv(220, 80%, 61%)
CMYK	cmyk(80.1%, 53.8%, 0%, 38.8%)
CIE-LAB	lab(32.54, 17.68, -49.83)
CIE-LCH	lch(32.54, 52.87, 289.54°)
OKLab	oklab(42.45% -0.019 -0.1436)
OKLCH	oklch(42.45% 0.145 262.4)
XYZ	xyz(8.8810, 7.3253, 32.3919)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F489C #9C731F

analogous

#1F879C #1F489C #351F9C

triadic

#1F489C #9C1F48 #489C1F

tetradic

#1F489C #9C1F87 #9C731F #1F9C35

square

#1F489C #9C1F87 #9C731F #1F9C35

split-complementary

#1F489C #9C351F #879C1F

monochromatic

#0B1936 #153069 #1F489C #2960CF #5884DE

Accessibility & contrast

On white

8.52

#1F489C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1F489C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F489C

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F489C	#FFFFFF	#000000	##FFFFFF
##1F489C	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07539F

Deuteranopia (green-blind)

#00479A

Tritanopia (blue-blind)

#005D6B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f489c;
/* rgb */ color: rgb(31, 72, 156);
/* oklch */ color: oklch(42.5% 0.145 262.4);

Tailwind

colors: {
  custom: {
    50: '#6f7aba',
    500: '#1f489c',
    950: '#000000',
  },
}

SCSS

$custom: #1f489c;
$custom-light: #6f7aba;
$custom-dark: #000000;

JSON

{
  "hex": "#1f489c",
  "rgb": {
    "r": 31,
    "g": 72,
    "b": 156
  },
  "hsl": {
    "h": 220.32,
    "s": 66.845,
    "l": 36.667
  },
  "oklch": {
    "l": 0.42453,
    "c": 0.14488,
    "h": 262.4
  },
  "luminance": 0.07326
}

Semantic roles & 50–950 ramp

primary

#1F489C

secondary

#C19E55

accent

#B13EEA

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1F489C

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

Preview Lab → · Contrast checker → · Palette generator →