#1F2E8A#1F2E8A

#1F2E8A is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.6% C 0.153 H 269.4°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#1F2E8A
RGB	rgb(31, 46, 138)
HSL	hsl(232, 63%, 33%)
HSV	hsv(232, 78%, 54%)
CMYK	cmyk(77.5%, 66.7%, 0%, 45.9%)
CIE-LAB	lab(23.93, 28.37, -52.80)
CIE-LCH	lch(23.93, 59.94, 298.24°)
OKLab	oklab(35.55% -0.0015 -0.1527)
OKLCH	oklch(35.55% 0.153 269.4)
XYZ	xyz(6.1279, 4.0796, 24.5043)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2E8A #8A7B1F

analogous

#1F638A #1F2E8A #451F8A

triadic

#1F2E8A #8A1F2E #2E8A1F

tetradic

#1F2E8A #8A1F63 #8A7B1F #1F8A45

square

#1F2E8A #8A1F63 #8A7B1F #1F8A45

split-complementary

#1F2E8A #8A451F #638A1F

monochromatic

#090D26 #141D58 #1F2E8A #2A3FBC #4C60D7

Accessibility & contrast

On white

11.56

#1F2E8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1F2E8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2E8A

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2E8A	#FFFFFF	#000000	##FFFFFF
##1F2E8A	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8D

Deuteranopia (green-blind)

#003488

Tritanopia (blue-blind)

#004657

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f2e8a;
/* rgb */ color: rgb(31, 46, 138);
/* oklch */ color: oklch(35.6% 0.153 269.4);

Tailwind

colors: {
  custom: {
    50: '#6d66ad',
    500: '#1f2e8a',
    950: '#000000',
  },
}

SCSS

$custom: #1f2e8a;
$custom-light: #6d66ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2e8a",
  "rgb": {
    "r": 31,
    "g": 46,
    "b": 138
  },
  "hsl": {
    "h": 231.589,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.35551,
    "c": 0.15274,
    "h": 269.4
  },
  "luminance": 0.0408
}

Semantic roles & 50–950 ramp

primary

#1F2E8A

secondary

#BAAA4B

accent

#CF41E6

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1F2E8A

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

Preview Lab → · Contrast checker → · Palette generator →