#1F117E#1F117E

#1F117E is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.9% C 0.167 H 275.1°. Best body text is #FFFFFF at 14.59:1 contrast (WCAG AA passes).

Color values

HEX	#1F117E
RGB	rgb(31, 17, 126)
HSL	hsl(248, 76%, 28%)
HSV	hsv(248, 87%, 49%)
CMYK	cmyk(75.4%, 86.5%, 0%, 50.6%)
CIE-LAB	lab(16.49, 41.22, -57.51)
CIE-LCH	lch(16.49, 70.76, 305.63°)
OKLab	oklab(29.86% 0.0149 -0.1662)
OKLCH	oklch(29.86% 0.167 275.1)
XYZ	xyz(4.5302, 2.1981, 19.9202)
Luminance	0.0220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F117E #707E11

analogous

#113A7E #1F117E #55117E

triadic

#1F117E #7E1F11 #117E1F

tetradic

#1F117E #7E113A #707E11 #117E55

square

#1F117E #7E113A #707E11 #117E55

split-complementary

#1F117E #7E5511 #3A7E11

monochromatic

#07041B #120A48 #1F117E #2C18B4 #3F27E2

Accessibility & contrast

On white

14.59

#1F117E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1F117E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F117E

14.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F117E	#FFFFFF	#000000	##FFFFFF
##1F117E	1.00	14.59	1.44	14.59
#FFFFFF	14.59	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D81

Deuteranopia (green-blind)

#00247C

Tritanopia (blue-blind)

#003449

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f117e;
/* rgb */ color: rgb(31, 17, 126);
/* oklch */ color: oklch(29.9% 0.167 275.1);

Tailwind

colors: {
  custom: {
    50: '#6c54a5',
    500: '#1f117e',
    950: '#000000',
  },
}

SCSS

$custom: #1f117e;
$custom-light: #6c54a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f117e",
  "rgb": {
    "r": 31,
    "g": 17,
    "b": 126
  },
  "hsl": {
    "h": 247.706,
    "s": 76.224,
    "l": 28.039
  },
  "oklch": {
    "l": 0.29863,
    "c": 0.16691,
    "h": 275.1
  },
  "luminance": 0.02199
}

Semantic roles & 50–950 ramp

primary

#1F117E

secondary

#A4B437

accent

#F335DA

background

#F7F5FA

surface

#EDE8F4

border

#C8C4CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1F117E

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

Preview Lab → · Contrast checker → · Palette generator →