#1F197E#1F197E

#1F197E is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.8% C 0.160 H 274.2°. Best body text is #FFFFFF at 14.01:1 contrast (WCAG AA passes).

Color values

HEX	#1F197E
RGB	rgb(31, 25, 126)
HSL	hsl(244, 67%, 30%)
HSV	hsv(244, 80%, 49%)
CMYK	cmyk(75.4%, 80.2%, 0%, 50.6%)
CIE-LAB	lab(17.88, 37.17, -55.21)
CIE-LCH	lch(17.88, 66.56, 303.95°)
OKLab	oklab(30.83% 0.0118 -0.1597)
OKLCH	oklch(30.83% 0.16 274.2)
XYZ	xyz(4.6774, 2.4925, 19.9692)
Luminance	0.0249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F197E #787E19

analogous

#19467E #1F197E #51197E

triadic

#1F197E #7E1F19 #197E1F

tetradic

#1F197E #7E1946 #787E19 #197E51

square

#1F197E #7E1946 #787E19 #197E51

split-complementary

#1F197E #7E5119 #467E19

monochromatic

#06051A #120F4B #1F197E #2C23B1 #433AD8

Accessibility & contrast

On white

14.01

#1F197E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#1F197E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F197E

14.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F197E	#FFFFFF	#000000	##FFFFFF
##1F197E	1.00	14.01	1.50	14.01
#FFFFFF	14.01	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003081

Deuteranopia (green-blind)

#00277C

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1f197e;
/* rgb */ color: rgb(31, 25, 126);
/* oklch */ color: oklch(30.8% 0.160 274.2);

Tailwind

colors: {
  custom: {
    50: '#6c58a5',
    500: '#1f197e',
    950: '#000000',
  },
}

SCSS

$custom: #1f197e;
$custom-light: #6c58a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f197e",
  "rgb": {
    "r": 31,
    "g": 25,
    "b": 126
  },
  "hsl": {
    "h": 243.564,
    "s": 66.887,
    "l": 29.608
  },
  "oklch": {
    "l": 0.30828,
    "c": 0.16013,
    "h": 274.2
  },
  "luminance": 0.02493
}

Semantic roles & 50–950 ramp

primary

#1F197E

secondary

#ABB241

accent

#EA3EE0

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1F197E

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

Preview Lab → · Contrast checker → · Palette generator →