#1F2B85#1F2B85

#1F2B85 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.5% C 0.150 H 270.3°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#1F2B85
RGB	rgb(31, 43, 133)
HSL	hsl(233, 62%, 32%)
HSV	hsv(233, 77%, 52%)
CMYK	cmyk(76.7%, 67.7%, 0%, 47.8%)
CIE-LAB	lab(22.70, 28.48, -51.71)
CIE-LCH	lch(22.70, 59.03, 298.84°)
OKLab	oklab(34.5% 0.0008 -0.1495)
OKLCH	oklch(34.5% 0.15 270.3)
XYZ	xyz(5.6611, 3.7119, 22.6039)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2B85 #85791F

analogous

#1F5E85 #1F2B85 #461F85

triadic

#1F2B85 #851F2B #2B851F

tetradic

#1F2B85 #851F5E #85791F #1F8546

square

#1F2B85 #851F5E #85791F #1F8546

split-complementary

#1F2B85 #85461F #5E851F

monochromatic

#080B22 #131B53 #1F2B85 #2B3BB7 #4A5AD5

Accessibility & contrast

On white

12.05

#1F2B85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1F2B85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2B85

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2B85	#FFFFFF	#000000	##FFFFFF
##1F2B85	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B88

Deuteranopia (green-blind)

#003183

Tritanopia (blue-blind)

#004354

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2b85;
/* rgb */ color: rgb(31, 43, 133);
/* oklch */ color: oklch(34.5% 0.150 270.3);

Tailwind

colors: {
  custom: {
    50: '#6c64a9',
    500: '#1f2b85',
    950: '#000000',
  },
}

SCSS

$custom: #1f2b85;
$custom-light: #6c64a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2b85",
  "rgb": {
    "r": 31,
    "g": 43,
    "b": 133
  },
  "hsl": {
    "h": 232.941,
    "s": 62.195,
    "l": 32.157
  },
  "oklch": {
    "l": 0.345,
    "c": 0.14954,
    "h": 270.3
  },
  "luminance": 0.03713
}

Semantic roles & 50–950 ramp

primary

#1F2B85

secondary

#B7AA49

accent

#D243E5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1F2B85

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

Preview Lab → · Contrast checker → · Palette generator →