#1F2E88#1F2E88

#1F2E88 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.4% C 0.150 H 269.5°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#1F2E88
RGB	rgb(31, 46, 136)
HSL	hsl(231, 63%, 33%)
HSV	hsv(231, 77%, 53%)
CMYK	cmyk(77.2%, 66.2%, 0%, 46.7%)
CIE-LAB	lab(23.74, 27.60, -51.86)
CIE-LCH	lch(23.74, 58.75, 298.02°)
OKLab	oklab(35.36% -0.0014 -0.15)
OKLCH	oklch(35.36% 0.15 269.5)
XYZ	xyz(5.9845, 4.0222, 23.7487)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2E88 #88791F

analogous

#1F6288 #1F2E88 #451F88

triadic

#1F2E88 #881F2E #2E881F

tetradic

#1F2E88 #881F62 #88791F #1F8845

square

#1F2E88 #881F62 #88791F #1F8845

split-complementary

#1F2E88 #88451F #62881F

monochromatic

#080C24 #141D56 #1F2E88 #2A3FBA #4B5FD6

Accessibility & contrast

On white

11.64

#1F2E88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1F2E88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2E88

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2E88	#FFFFFF	#000000	##FFFFFF
##1F2E88	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8B

Deuteranopia (green-blind)

#003486

Tritanopia (blue-blind)

#004656

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f2e88;
/* rgb */ color: rgb(31, 46, 136);
/* oklch */ color: oklch(35.4% 0.150 269.5);

Tailwind

colors: {
  custom: {
    50: '#6c66ac',
    500: '#1f2e88',
    950: '#000000',
  },
}

SCSS

$custom: #1f2e88;
$custom-light: #6c66ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2e88",
  "rgb": {
    "r": 31,
    "g": 46,
    "b": 136
  },
  "hsl": {
    "h": 231.429,
    "s": 62.874,
    "l": 32.745
  },
  "oklch": {
    "l": 0.35356,
    "c": 0.14999,
    "h": 269.5
  },
  "luminance": 0.04023
}

Semantic roles & 50–950 ramp

primary

#1F2E88

secondary

#B9A94A

accent

#CE42E6

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1F2E88

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

Preview Lab → · Contrast checker → · Palette generator →