#1F207B#1F207B

#1F207B is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.5% C 0.149 H 273.4°. Best body text is #FFFFFF at 13.54:1 contrast (WCAG AA passes).

Color values

HEX	#1F207B
RGB	rgb(31, 32, 123)
HSL	hsl(239, 60%, 30%)
HSV	hsv(239, 75%, 48%)
CMYK	cmyk(74.8%, 74%, 0%, 51.8%)
CIE-LAB	lab(19.03, 31.95, -51.41)
CIE-LCH	lch(19.03, 60.53, 301.86°)
OKLab	oklab(31.54% 0.0087 -0.1487)
OKLCH	oklch(31.54% 0.149 273.4)
XYZ	xyz(4.6555, 2.7539, 19.0213)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F207B #7B7A1F

analogous

#1F4E7B #1F207B #4C1F7B

triadic

#1F207B #7B1F20 #207B1F

tetradic

#1F207B #7B1F4E #7B7A1F #1F7B4C

square

#1F207B #7B1F4E #7B7A1F #1F7B4C

split-complementary

#1F207B #7B4C1F #4E7B1F

monochromatic

#060719 #13134A #1F207B #2B2DAC #4446D0

Accessibility & contrast

On white

13.54

#1F207B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1F207B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F207B

13.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F207B	#FFFFFF	#000000	##FFFFFF
##1F207B	1.00	13.54	1.55	13.54
#FFFFFF	13.54	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337E

Deuteranopia (green-blind)

#002A79

Tritanopia (blue-blind)

#00394B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f207b;
/* rgb */ color: rgb(31, 32, 123);
/* oklch */ color: oklch(31.5% 0.149 273.4);

Tailwind

colors: {
  custom: {
    50: '#6a5ca2',
    500: '#1f207b',
    950: '#000000',
  },
}

SCSS

$custom: #1f207b;
$custom-light: #6a5ca2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f207b",
  "rgb": {
    "r": 31,
    "g": 32,
    "b": 123
  },
  "hsl": {
    "h": 239.348,
    "s": 59.74,
    "l": 30.196
  },
  "oklch": {
    "l": 0.31541,
    "c": 0.14894,
    "h": 273.4
  },
  "luminance": 0.02754
}

Semantic roles & 50–950 ramp

primary

#1F207B

secondary

#AEAD48

accent

#E145E3

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1F207B

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

Preview Lab → · Contrast checker → · Palette generator →