#1F2B7D#1F2B7D

#1F2B7D is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.7% C 0.138 H 270.5°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#1F2B7D
RGB	rgb(31, 43, 125)
HSL	hsl(232, 60%, 31%)
HSV	hsv(232, 75%, 49%)
CMYK	cmyk(75.2%, 65.6%, 0%, 51%)
CIE-LAB	lab(21.94, 25.41, -47.90)
CIE-LCH	lch(21.94, 54.22, 297.94°)
OKLab	oklab(33.72% 0.0012 -0.1384)
OKLCH	oklch(33.72% 0.138 270.5)
XYZ	xyz(5.1294, 3.4992, 19.8031)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2B7D #7D711F

analogous

#1F5A7D #1F2B7D #421F7D

triadic

#1F2B7D #7D1F2B #2B7D1F

tetradic

#1F2B7D #7D1F5A #7D711F #1F7D42

square

#1F2B7D #7D1F5A #7D711F #1F7D42

split-complementary

#1F2B7D #7D421F #5A7D1F

monochromatic

#07091B #131A4C #1F2B7D #2B3CAE #4557D1

Accessibility & contrast

On white

12.35

#1F2B7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1F2B7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2B7D

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2B7D	#FFFFFF	#000000	##FFFFFF
##1F2B7D	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003980

Deuteranopia (green-blind)

#00307B

Tritanopia (blue-blind)

#00404F

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f2b7d;
/* rgb */ color: rgb(31, 43, 125);
/* oklch */ color: oklch(33.7% 0.138 270.5);

Tailwind

colors: {
  custom: {
    50: '#6a64a3',
    500: '#1f2b7d',
    950: '#000000',
  },
}

SCSS

$custom: #1f2b7d;
$custom-light: #6a64a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2b7d",
  "rgb": {
    "r": 31,
    "g": 43,
    "b": 125
  },
  "hsl": {
    "h": 232.34,
    "s": 60.256,
    "l": 30.588
  },
  "oklch": {
    "l": 0.33716,
    "c": 0.1384,
    "h": 270.5
  },
  "luminance": 0.035
}

Semantic roles & 50–950 ramp

primary

#1F2B7D

secondary

#B0A348

accent

#CF44E3

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1F2B7D

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

Preview Lab → · Contrast checker → · Palette generator →