#1F2198#1F2198

#1F2198 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.9% C 0.185 H 270.9°. Best body text is #FFFFFF at 12.14:1 contrast (WCAG AA passes).

Color values

HEX	#1F2198
RGB	rgb(31, 33, 152)
HSL	hsl(239, 66%, 36%)
HSV	hsv(239, 80%, 60%)
CMYK	cmyk(79.6%, 78.3%, 0%, 40.4%)
CIE-LAB	lab(22.46, 41.52, -63.89)
CIE-LCH	lch(22.46, 76.20, 303.02°)
OKLab	oklab(34.93% 0.003 -0.185)
OKLCH	oklch(34.93% 0.185 270.9)
XYZ	xyz(6.7745, 3.6453, 30.0462)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2198 #98961F

analogous

#1F5D98 #1F2198 #591F98

triadic

#1F2198 #981F21 #21981F

tetradic

#1F2198 #981F5D #98961F #1F9859

square

#1F2198 #981F5D #98961F #1F9859

split-complementary

#1F2198 #98591F #5D981F

monochromatic

#0A0B32 #151665 #1F2198 #292CCB #5557DC

Accessibility & contrast

On white

12.14

#1F2198 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1F2198 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2198

12.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2198	#FFFFFF	#000000	##FFFFFF
##1F2198	1.00	12.14	1.73	12.14
#FFFFFF	12.14	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9B

Deuteranopia (green-blind)

#002F96

Tritanopia (blue-blind)

#00455C

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2198;
/* rgb */ color: rgb(31, 33, 152);
/* oklch */ color: oklch(34.9% 0.185 270.9);

Tailwind

colors: {
  custom: {
    50: '#725eb8',
    500: '#1f2198',
    950: '#000000',
  },
}

SCSS

$custom: #1f2198;
$custom-light: #725eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2198",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 152
  },
  "hsl": {
    "h": 239.008,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.34933,
    "c": 0.18504,
    "h": 270.9
  },
  "luminance": 0.03646
}

Semantic roles & 50–950 ramp

primary

#1F2198

secondary

#C0BE53

accent

#E63FE9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F2198

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

Preview Lab → · Contrast checker → · Palette generator →