#1F2EB4#1F2EB4

#1F2EB4 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 39.9% C 0.207 H 268.4°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#1F2EB4
RGB	rgb(31, 46, 180)
HSL	hsl(234, 71%, 41%)
HSV	hsv(234, 83%, 71%)
CMYK	cmyk(82.8%, 74.4%, 0%, 29.4%)
CIE-LAB	lab(28.22, 43.68, -71.31)
CIE-LCH	lch(28.22, 83.63, 301.49°)
OKLab	oklab(39.93% -0.0058 -0.2067)
OKLCH	oklch(39.93% 0.207 268.4)
XYZ	xyz(9.7774, 5.5394, 43.7251)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2EB4 #B4A51F

analogous

#1F79B4 #1F2EB4 #5B1FB4

triadic

#1F2EB4 #B41F2E #2EB41F

tetradic

#1F2EB4 #B41F79 #B4A51F #1FB45B

square

#1F2EB4 #B41F79 #B4A51F #1FB45B

split-complementary

#1F2EB4 #B45B1F #79B41F

monochromatic

#0D134C #162180 #1F2EB4 #3445DC #6875E5

Accessibility & contrast

On white

9.96

#1F2EB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#1F2EB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2EB4

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2EB4	#FFFFFF	#000000	##FFFFFF
##1F2EB4	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB8

Deuteranopia (green-blind)

#003BB2

Tritanopia (blue-blind)

#00556F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1f2eb4;
/* rgb */ color: rgb(31, 46, 180);
/* oklch */ color: oklch(39.9% 0.207 268.4);

Tailwind

colors: {
  custom: {
    50: '#7868cc',
    500: '#1f2eb4',
    950: '#000000',
  },
}

SCSS

$custom: #1f2eb4;
$custom-light: #7868cc;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2eb4",
  "rgb": {
    "r": 31,
    "g": 46,
    "b": 180
  },
  "hsl": {
    "h": 233.96,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39934,
    "c": 0.20676,
    "h": 268.4
  },
  "luminance": 0.05541
}

Semantic roles & 50–950 ramp

primary

#1F2EB4

secondary

#CBC064

accent

#DB3AED

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0614

muted

#7C7A82

Preview Lab

Preview with #1F2EB4

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

Preview Lab → · Contrast checker → · Palette generator →