#1B4DD2#1B4DD2

#1B4DD2 is a mid, highly saturated blue. Relative luminance 0.102; OKLCH L 48.0% C 0.211 H 264.0°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#1B4DD2
RGB	rgb(27, 77, 210)
HSL	hsl(224, 77%, 46%)
HSV	hsv(224, 87%, 82%)
CMYK	cmyk(87.1%, 63.3%, 0%, 17.6%)
CIE-LAB	lab(38.18, 35.04, -72.48)
CIE-LCH	lch(38.18, 80.51, 295.80°)
OKLab	oklab(48.03% -0.0219 -0.21)
OKLCH	oklch(48.03% 0.211 264)
XYZ	xyz(14.7346, 10.1920, 62.1509)
Luminance	0.1019 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4DD2 #D2A01B

analogous

#1BA9D2 #1B4DD2 #451BD2

triadic

#1B4DD2 #D21B4D #4DD21B

tetradic

#1B4DD2 #D21BA9 #D2A01B #1BD245

square

#1B4DD2 #D21BA9 #D2A01B #1BD245

split-complementary

#1B4DD2 #D2451B #A9D21B

monochromatic

#0D2566 #14399C #1B4DD2 #4370E7 #7A99EE

Accessibility & contrast

On white

6.91

#1B4DD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#1B4DD2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B4DD2

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4DD2	#FFFFFF	#000000	##FFFFFF
##1B4DD2	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063D6

Deuteranopia (green-blind)

#0052D0

Tritanopia (blue-blind)

#007088

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1b4dd2;
/* rgb */ color: rgb(27, 77, 210);
/* oklch */ color: oklch(48.0% 0.211 264.0);

Tailwind

colors: {
  custom: {
    50: '#7c7ee1',
    500: '#1b4dd2',
    950: '#000000',
  },
}

SCSS

$custom: #1b4dd2;
$custom-light: #7c7ee1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4dd2",
  "rgb": {
    "r": 27,
    "g": 77,
    "b": 210
  },
  "hsl": {
    "h": 223.607,
    "s": 77.215,
    "l": 46.471
  },
  "oklch": {
    "l": 0.48032,
    "c": 0.21118,
    "h": 264
  },
  "luminance": 0.10194
}

Semantic roles & 50–950 ramp

primary

#1B4DD2

secondary

#D5BB73

accent

#BF34F4

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #1B4DD2

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

Preview Lab → · Contrast checker → · Palette generator →