#1F2D7F#1F2D7F

#1F2D7F is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.3% C 0.139 H 269.9°. Best body text is #FFFFFF at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#1F2D7F
RGB	rgb(31, 45, 127)
HSL	hsl(231, 61%, 31%)
HSV	hsv(231, 76%, 50%)
CMYK	cmyk(75.6%, 64.6%, 0%, 50.2%)
CIE-LAB	lab(22.65, 24.81, -48.00)
CIE-LCH	lch(22.65, 54.03, 297.33°)
OKLab	oklab(34.3% -0.0003 -0.1387)
OKLCH	oklch(34.3% 0.139 269.9)
XYZ	xyz(5.3329, 3.6998, 20.5076)
Luminance	0.0370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2D7F #7F711F

analogous

#1F5D7F #1F2D7F #411F7F

triadic

#1F2D7F #7F1F2D #2D7F1F

tetradic

#1F2D7F #7F1F5D #7F711F #1F7F41

square

#1F2D7F #7F1F5D #7F711F #1F7F41

split-complementary

#1F2D7F #7F411F #5D7F1F

monochromatic

#070A1D #131C4E #1F2D7F #2B3EB0 #465BD2

Accessibility & contrast

On white

12.07

#1F2D7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1F2D7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2D7F

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2D7F	#FFFFFF	#000000	##FFFFFF
##1F2D7F	1.00	12.07	1.74	12.07
#FFFFFF	12.07	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B82

Deuteranopia (green-blind)

#00327D

Tritanopia (blue-blind)

#004251

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2d7f;
/* rgb */ color: rgb(31, 45, 127);
/* oklch */ color: oklch(34.3% 0.139 269.9);

Tailwind

colors: {
  custom: {
    50: '#6a65a5',
    500: '#1f2d7f',
    950: '#000000',
  },
}

SCSS

$custom: #1f2d7f;
$custom-light: #6a65a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2d7f",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 127
  },
  "hsl": {
    "h": 231.25,
    "s": 60.759,
    "l": 30.98
  },
  "oklch": {
    "l": 0.34296,
    "c": 0.13867,
    "h": 269.9
  },
  "luminance": 0.037
}

Semantic roles & 50–950 ramp

primary

#1F2D7F

secondary

#B2A348

accent

#CD44E4

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1F2D7F

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

Preview Lab → · Contrast checker → · Palette generator →