#1F2DB4#1F2DB4

#1F2DB4 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 39.8% C 0.208 H 268.5°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#1F2DB4
RGB	rgb(31, 45, 180)
HSL	hsl(234, 71%, 41%)
HSV	hsv(234, 83%, 71%)
CMYK	cmyk(82.8%, 75%, 0%, 29.4%)
CIE-LAB	lab(28.01, 44.26, -71.66)
CIE-LCH	lch(28.01, 84.22, 301.70°)
OKLab	oklab(39.79% -0.0055 -0.2077)
OKLCH	oklch(39.79% 0.208 268.5)
XYZ	xyz(9.7388, 5.4622, 43.7122)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2DB4 #B4A61F

analogous

#1F78B4 #1F2DB4 #5B1FB4

triadic

#1F2DB4 #B41F2D #2DB41F

tetradic

#1F2DB4 #B41F78 #B4A61F #1FB45B

square

#1F2DB4 #B41F78 #B4A61F #1FB45B

split-complementary

#1F2DB4 #B45B1F #78B41F

monochromatic

#0D134C #162080 #1F2DB4 #3444DC #6874E5

Accessibility & contrast

On white

10.04

#1F2DB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1F2DB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2DB4

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2DB4	#FFFFFF	#000000	##FFFFFF
##1F2DB4	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B8

Deuteranopia (green-blind)

#003BB2

Tritanopia (blue-blind)

#00556E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1f2db4;
/* rgb */ color: rgb(31, 45, 180);
/* oklch */ color: oklch(39.8% 0.208 268.5);

Tailwind

colors: {
  custom: {
    50: '#7867cc',
    500: '#1f2db4',
    950: '#000000',
  },
}

SCSS

$custom: #1f2db4;
$custom-light: #7867cc;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2db4",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 180
  },
  "hsl": {
    "h": 234.362,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39787,
    "c": 0.20773,
    "h": 268.5
  },
  "luminance": 0.05463
}

Semantic roles & 50–950 ramp

primary

#1F2DB4

secondary

#CBC164

accent

#DD3AED

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0614

muted

#7C7A82

Preview Lab

Preview with #1F2DB4

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

Preview Lab → · Contrast checker → · Palette generator →