#1F2180#1F2180

#1F2180 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.2% C 0.154 H 272.7°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#1F2180
RGB	rgb(31, 33, 128)
HSL	hsl(239, 61%, 31%)
HSV	hsv(239, 76%, 50%)
CMYK	cmyk(75.8%, 74.2%, 0%, 49.8%)
CIE-LAB	lab(19.79, 33.13, -53.33)
CIE-LCH	lch(19.79, 62.79, 301.85°)
OKLab	oklab(32.25% 0.0073 -0.1543)
OKLCH	oklch(32.25% 0.154 272.7)
XYZ	xyz(5.0039, 2.9370, 20.7211)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2180 #807E1F

analogous

#1F5180 #1F2180 #4D1F80

triadic

#1F2180 #801F21 #21801F

tetradic

#1F2180 #801F51 #807E1F #1F804D

square

#1F2180 #801F51 #807E1F #1F804D

split-complementary

#1F2180 #804D1F #51801F

monochromatic

#07081D #13144F #1F2180 #2B2EB1 #474AD2

Accessibility & contrast

On white

13.23

#1F2180 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1F2180 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2180

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2180	#FFFFFF	#000000	##FFFFFF
##1F2180	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003483

Deuteranopia (green-blind)

#002B7E

Tritanopia (blue-blind)

#003C4E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1f2180;
/* rgb */ color: rgb(31, 33, 128);
/* oklch */ color: oklch(32.2% 0.154 272.7);

Tailwind

colors: {
  custom: {
    50: '#6b5da6',
    500: '#1f2180',
    950: '#000000',
  },
}

SCSS

$custom: #1f2180;
$custom-light: #6b5da6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2180",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 128
  },
  "hsl": {
    "h": 238.763,
    "s": 61.006,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32245,
    "c": 0.15447,
    "h": 272.7
  },
  "luminance": 0.02938
}

Semantic roles & 50–950 ramp

primary

#1F2180

secondary

#B3B148

accent

#E144E4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #1F2180

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

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