#1F2F7E#1F2F7E

#1F2F7E is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.6% C 0.135 H 269.2°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F7E
RGB	rgb(31, 47, 126)
HSL	hsl(230, 61%, 31%)
HSV	hsv(230, 75%, 49%)
CMYK	cmyk(75.4%, 62.7%, 0%, 50.6%)
CIE-LAB	lab(23.10, 23.03, -46.64)
CIE-LCH	lch(23.10, 52.01, 296.28°)
OKLab	oklab(34.6% -0.0018 -0.1346)
OKLCH	oklch(34.6% 0.135 269.2)
XYZ	xyz(5.3462, 3.8301, 20.1922)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F7E #7E6E1F

analogous

#1F5E7E #1F2F7E #3E1F7E

triadic

#1F2F7E #7E1F2F #2F7E1F

tetradic

#1F2F7E #7E1F5E #7E6E1F #1F7E3E

square

#1F2F7E #7E1F5E #7E6E1F #1F7E3E

split-complementary

#1F2F7E #7E3E1F #5E7E1F

monochromatic

#070A1C #131D4D #1F2F7E #2B41AF #465DD1

Accessibility & contrast

On white

11.89

#1F2F7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1F2F7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F7E

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F7E	#FFFFFF	#000000	##FFFFFF
##1F2F7E	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C81

Deuteranopia (green-blind)

#00337C

Tritanopia (blue-blind)

#004351

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f2f7e;
/* rgb */ color: rgb(31, 47, 126);
/* oklch */ color: oklch(34.6% 0.135 269.2);

Tailwind

colors: {
  custom: {
    50: '#6a67a4',
    500: '#1f2f7e',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f7e;
$custom-light: #6a67a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f7e",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 126
  },
  "hsl": {
    "h": 229.895,
    "s": 60.51,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34601,
    "c": 0.13466,
    "h": 269.2
  },
  "luminance": 0.03831
}

Semantic roles & 50–950 ramp

primary

#1F2F7E

secondary

#B19F48

accent

#C944E4

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1F2F7E

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

Preview Lab → · Contrast checker → · Palette generator →