#1F196B#1F196B

#1F196B is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.7% C 0.135 H 276.8°. Best body text is #FFFFFF at 14.90:1 contrast (WCAG AA passes).

Color values

HEX	#1F196B
RGB	rgb(31, 25, 107)
HSL	hsl(244, 62%, 26%)
HSV	hsv(244, 77%, 42%)
CMYK	cmyk(71%, 76.6%, 0%, 58%)
CIE-LAB	lab(15.74, 30.59, -46.50)
CIE-LCH	lch(15.74, 55.66, 303.34°)
OKLab	oklab(28.67% 0.0161 -0.1343)
OKLCH	oklch(28.67% 0.135 276.8)
XYZ	xyz(3.5657, 2.0478, 14.1144)
Luminance	0.0205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F196B #656B19

analogous

#193C6B #1F196B #48196B

triadic

#1F196B #6B1F19 #196B1F

tetradic

#1F196B #6B193C #656B19 #196B48

square

#1F196B #6B193C #656B19 #196B48

split-complementary

#1F196B #6B4819 #3C6B19

monochromatic

#070619 #110D39 #1F196B #2D259D #3C30CE

Accessibility & contrast

On white

14.90

#1F196B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#1F196B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F196B

14.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F196B	#FFFFFF	#000000	##FFFFFF
##1F196B	1.00	14.90	1.41	14.90
#FFFFFF	14.90	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6D

Deuteranopia (green-blind)

#00246A

Tritanopia (blue-blind)

#003040

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1f196b;
/* rgb */ color: rgb(31, 25, 107);
/* oklch */ color: oklch(28.7% 0.135 276.8);

Tailwind

colors: {
  custom: {
    50: '#675796',
    500: '#1f196b',
    950: '#000000',
  },
}

SCSS

$custom: #1f196b;
$custom-light: #675796;
$custom-dark: #000000;

JSON

{
  "hex": "#1f196b",
  "rgb": {
    "r": 31,
    "g": 25,
    "b": 107
  },
  "hsl": {
    "h": 244.39,
    "s": 62.121,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28673,
    "c": 0.1353,
    "h": 276.8
  },
  "luminance": 0.02048
}

Semantic roles & 50–950 ramp

primary

#1F196B

secondary

#99A13F

accent

#E543D9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #1F196B

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

Preview Lab → · Contrast checker → · Palette generator →