#1B4ED2#1B4ED2

#1B4ED2 is a mid, highly saturated blue. Relative luminance 0.103; OKLCH L 48.2% C 0.210 H 263.9°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#1B4ED2
RGB	rgb(27, 78, 210)
HSL	hsl(223, 77%, 46%)
HSV	hsv(223, 87%, 82%)
CMYK	cmyk(87.1%, 62.9%, 0%, 17.6%)
CIE-LAB	lab(38.43, 34.40, -72.07)
CIE-LCH	lch(38.43, 79.86, 295.51°)
OKLab	oklab(48.22% -0.0223 -0.2088)
OKLCH	oklch(48.22% 0.21 263.9)
XYZ	xyz(14.8051, 10.3330, 62.1744)
Luminance	0.1033 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4ED2 #D29F1B

analogous

#1BAAD2 #1B4ED2 #441BD2

triadic

#1B4ED2 #D21B4E #4ED21B

tetradic

#1B4ED2 #D21BAA #D29F1B #1BD244

square

#1B4ED2 #D21BAA #D29F1B #1BD244

split-complementary

#1B4ED2 #D2441B #AAD21B

monochromatic

#0D2666 #143A9C #1B4ED2 #4371E7 #7A9AEE

Accessibility & contrast

On white

6.85

#1B4ED2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#1B4ED2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B4ED2

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4ED2	#FFFFFF	#000000	##FFFFFF
##1B4ED2	1.00	6.85	3.07	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063D6

Deuteranopia (green-blind)

#0052D0

Tritanopia (blue-blind)

#007189

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1b4ed2;
/* rgb */ color: rgb(27, 78, 210);
/* oklch */ color: oklch(48.2% 0.210 263.9);

Tailwind

colors: {
  custom: {
    50: '#7c7fe1',
    500: '#1b4ed2',
    950: '#000000',
  },
}

SCSS

$custom: #1b4ed2;
$custom-light: #7c7fe1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4ed2",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 210
  },
  "hsl": {
    "h": 223.279,
    "s": 77.215,
    "l": 46.471
  },
  "oklch": {
    "l": 0.48216,
    "c": 0.21003,
    "h": 263.9
  },
  "luminance": 0.10335
}

Semantic roles & 50–950 ramp

primary

#1B4ED2

secondary

#D5BA73

accent

#BE34F4

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #1B4ED2

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

Preview Lab → · Contrast checker → · Palette generator →