#1F2D87#1F2D87

#1F2D87 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.1% C 0.150 H 269.7°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#1F2D87
RGB	rgb(31, 45, 135)
HSL	hsl(232, 63%, 33%)
HSV	hsv(232, 77%, 53%)
CMYK	cmyk(77%, 66.7%, 0%, 47.1%)
CIE-LAB	lab(23.39, 27.89, -51.81)
CIE-LCH	lch(23.39, 58.84, 298.29°)
OKLab	oklab(35.07% -0.0007 -0.1498)
OKLCH	oklch(35.07% 0.15 269.7)
XYZ	xyz(5.8751, 3.9167, 23.3633)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2D87 #87791F

analogous

#1F6187 #1F2D87 #451F87

triadic

#1F2D87 #871F2D #2D871F

tetradic

#1F2D87 #871F61 #87791F #1F8745

square

#1F2D87 #871F61 #87791F #1F8745

split-complementary

#1F2D87 #87451F #61871F

monochromatic

#080C23 #141C55 #1F2D87 #2A3EB9 #4B5DD6

Accessibility & contrast

On white

11.78

#1F2D87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1F2D87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2D87

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2D87	#FFFFFF	#000000	##FFFFFF
##1F2D87	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8A

Deuteranopia (green-blind)

#003385

Tritanopia (blue-blind)

#004555

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1f2d87;
/* rgb */ color: rgb(31, 45, 135);
/* oklch */ color: oklch(35.1% 0.150 269.7);

Tailwind

colors: {
  custom: {
    50: '#6c66ab',
    500: '#1f2d87',
    950: '#000000',
  },
}

SCSS

$custom: #1f2d87;
$custom-light: #6c66ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2d87",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 135
  },
  "hsl": {
    "h": 231.923,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.3507,
    "c": 0.14984,
    "h": 269.7
  },
  "luminance": 0.03917
}

Semantic roles & 50–950 ramp

primary

#1F2D87

secondary

#B8A94A

accent

#D042E6

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1F2D87

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

Preview Lab → · Contrast checker → · Palette generator →