#1F2D7A#1F2D7A

#1F2D7A is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.8% C 0.132 H 269.9°. Best body text is #FFFFFF at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#1F2D7A
RGB	rgb(31, 45, 122)
HSL	hsl(231, 59%, 30%)
HSV	hsv(231, 75%, 48%)
CMYK	cmyk(74.6%, 63.1%, 0%, 52.2%)
CIE-LAB	lab(22.21, 22.86, -45.56)
CIE-LCH	lch(22.21, 50.98, 296.64°)
OKLab	oklab(33.83% -0.0002 -0.1315)
OKLCH	oklch(33.83% 0.132 269.9)
XYZ	xyz(5.0151, 3.5727, 18.8339)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2D7A #7A6C1F

analogous

#1F5B7A #1F2D7A #3E1F7A

triadic

#1F2D7A #7A1F2D #2D7A1F

tetradic

#1F2D7A #7A1F5B #7A6C1F #1F7A3E

square

#1F2D7A #7A1F5B #7A6C1F #1F7A3E

split-complementary

#1F2D7A #7A3E1F #5B7A1F

monochromatic

#060918 #131B49 #1F2D7A #2B3FAB #4459CF

Accessibility & contrast

On white

12.25

#1F2D7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1F2D7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2D7A

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2D7A	#FFFFFF	#000000	##FFFFFF
##1F2D7A	1.00	12.25	1.71	12.25
#FFFFFF	12.25	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00397D

Deuteranopia (green-blind)

#003179

Tritanopia (blue-blind)

#00414F

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f2d7a;
/* rgb */ color: rgb(31, 45, 122);
/* oklch */ color: oklch(33.8% 0.132 269.9);

Tailwind

colors: {
  custom: {
    50: '#6965a1',
    500: '#1f2d7a',
    950: '#000000',
  },
}

SCSS

$custom: #1f2d7a;
$custom-light: #6965a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2d7a",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 122
  },
  "hsl": {
    "h": 230.769,
    "s": 59.477,
    "l": 30
  },
  "oklch": {
    "l": 0.33826,
    "c": 0.13153,
    "h": 269.9
  },
  "luminance": 0.03573
}

Semantic roles & 50–950 ramp

primary

#1F2D7A

secondary

#AD9E47

accent

#CA45E3

background

#F6F6FA

surface

#ECEBF3

border

#C7C6CD

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1F2D7A

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

Preview Lab → · Contrast checker → · Palette generator →