#1F127E#1F127E

#1F127E is a dark, vivid blue. Relative luminance 0.022; OKLCH L 30.0% C 0.166 H 275.0°. Best body text is #FFFFFF at 14.52:1 contrast (WCAG AA passes).

Color values

HEX	#1F127E
RGB	rgb(31, 18, 126)
HSL	hsl(247, 75%, 28%)
HSV	hsv(247, 86%, 49%)
CMYK	cmyk(75.4%, 85.7%, 0%, 50.6%)
CIE-LAB	lab(16.65, 40.76, -57.26)
CIE-LCH	lch(16.65, 70.28, 305.45°)
OKLab	oklab(29.97% 0.0145 -0.1655)
OKLCH	oklch(29.97% 0.166 275)
XYZ	xyz(4.5460, 2.2298, 19.9254)
Luminance	0.0223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F127E #717E12

analogous

#123B7E #1F127E #55127E

triadic

#1F127E #7E1F12 #127E1F

tetradic

#1F127E #7E123B #717E12 #127E55

square

#1F127E #7E123B #717E12 #127E55

split-complementary

#1F127E #7E5512 #3B7E12

monochromatic

#07041B #120A48 #1F127E #2C1AB4 #402AE1

Accessibility & contrast

On white

14.52

#1F127E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1F127E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F127E

14.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F127E	#FFFFFF	#000000	##FFFFFF
##1F127E	1.00	14.52	1.45	14.52
#FFFFFF	14.52	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E81

Deuteranopia (green-blind)

#00247C

Tritanopia (blue-blind)

#00354A

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f127e;
/* rgb */ color: rgb(31, 18, 126);
/* oklch */ color: oklch(30.0% 0.166 275.0);

Tailwind

colors: {
  custom: {
    50: '#6c54a5',
    500: '#1f127e',
    950: '#000000',
  },
}

SCSS

$custom: #1f127e;
$custom-light: #6c54a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f127e",
  "rgb": {
    "r": 31,
    "g": 18,
    "b": 126
  },
  "hsl": {
    "h": 247.222,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.2997,
    "c": 0.16616,
    "h": 275
  },
  "luminance": 0.0223
}

Semantic roles & 50–950 ramp

primary

#1F127E

secondary

#A5B438

accent

#F236DB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1F127E

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

Preview Lab → · Contrast checker → · Palette generator →