#1F2AA6#1F2AA6

#1F2AA6 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.8% C 0.194 H 269.3°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#1F2AA6
RGB	rgb(31, 42, 166)
HSL	hsl(235, 69%, 39%)
HSV	hsv(235, 81%, 65%)
CMYK	cmyk(81.3%, 74.7%, 0%, 34.9%)
CIE-LAB	lab(25.86, 41.16, -66.81)
CIE-LCH	lch(25.86, 78.47, 301.64°)
OKLab	oklab(37.8% -0.0025 -0.1936)
OKLCH	oklch(37.8% 0.194 269.3)
XYZ	xyz(8.2736, 4.6994, 36.5400)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2AA6 #A69B1F

analogous

#1F6DA6 #1F2AA6 #571FA6

triadic

#1F2AA6 #A61F2A #2AA61F

tetradic

#1F2AA6 #A61F6D #A69B1F #1FA657

square

#1F2AA6 #A61F6D #A69B1F #1FA657

split-complementary

#1F2AA6 #A6571F #6DA61F

monochromatic

#0C103F #151D72 #1F2AA6 #2B39D7 #5E69E1

Accessibility & contrast

On white

10.82

#1F2AA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1F2AA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2AA6

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2AA6	#FFFFFF	#000000	##FFFFFF
##1F2AA6	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044AA

Deuteranopia (green-blind)

#0036A4

Tritanopia (blue-blind)

#004E66

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1f2aa6;
/* rgb */ color: rgb(31, 42, 166);
/* oklch */ color: oklch(37.8% 0.194 269.3);

Tailwind

colors: {
  custom: {
    50: '#7565c2',
    500: '#1f2aa6',
    950: '#000000',
  },
}

SCSS

$custom: #1f2aa6;
$custom-light: #7565c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2aa6",
  "rgb": {
    "r": 31,
    "g": 42,
    "b": 166
  },
  "hsl": {
    "h": 235.111,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.37803,
    "c": 0.19359,
    "h": 269.3
  },
  "luminance": 0.047
}

Semantic roles & 50–950 ramp

primary

#1F2AA6

secondary

#C5BD5B

accent

#DD3CEB

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0513

muted

#7C7A82

Preview Lab

Preview with #1F2AA6

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

Preview Lab → · Contrast checker → · Palette generator →