#1F27A6#1F27A6

#1F27A6 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.4% C 0.197 H 269.6°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#1F27A6
RGB	rgb(31, 39, 166)
HSL	hsl(236, 69%, 39%)
HSV	hsv(236, 81%, 65%)
CMYK	cmyk(81.3%, 76.5%, 0%, 34.9%)
CIE-LAB	lab(25.24, 42.90, -67.83)
CIE-LCH	lch(25.24, 80.26, 302.31°)
OKLab	oklab(37.36% -0.0015 -0.1965)
OKLCH	oklch(37.36% 0.197 269.6)
XYZ	xyz(8.1712, 4.4946, 36.5059)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F27A6 #A69E1F

analogous

#1F6AA6 #1F27A6 #5A1FA6

triadic

#1F27A6 #A61F27 #27A61F

tetradic

#1F27A6 #A61F6A #A69E1F #1FA65A

square

#1F27A6 #A61F6A #A69E1F #1FA65A

split-complementary

#1F27A6 #A65A1F #6AA61F

monochromatic

#0C0F3F #151B72 #1F27A6 #2B35D7 #5E66E1

Accessibility & contrast

On white

11.06

#1F27A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1F27A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F27A6

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F27A6	#FFFFFF	#000000	##FFFFFF
##1F27A6	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043AA

Deuteranopia (green-blind)

#0035A4

Tritanopia (blue-blind)

#004D65

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1f27a6;
/* rgb */ color: rgb(31, 39, 166);
/* oklch */ color: oklch(37.4% 0.197 269.6);

Tailwind

colors: {
  custom: {
    50: '#7563c2',
    500: '#1f27a6',
    950: '#000000',
  },
}

SCSS

$custom: #1f27a6;
$custom-light: #7563c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f27a6",
  "rgb": {
    "r": 31,
    "g": 39,
    "b": 166
  },
  "hsl": {
    "h": 236.444,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.37364,
    "c": 0.19652,
    "h": 269.6
  },
  "luminance": 0.04496
}

Semantic roles & 50–950 ramp

primary

#1F27A6

secondary

#C5BF5B

accent

#E13CEB

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0513

muted

#7C7A82

Preview Lab

Preview with #1F27A6

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

Preview Lab → · Contrast checker → · Palette generator →