#455BB1#455BB1

#455BB1 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.9% C 0.139 H 270.0°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#455BB1
RGB	rgb(69, 91, 177)
HSL	hsl(228, 44%, 48%)
HSV	hsv(228, 61%, 69%)
CMYK	cmyk(61%, 48.6%, 0%, 30.6%)
CIE-LAB	lab(41.09, 18.79, -48.47)
CIE-LCH	lch(41.09, 51.98, 291.19°)
OKLab	oklab(49.91% -0.0001 -0.1386)
OKLCH	oklch(49.91% 0.139 270)
XYZ	xyz(14.1285, 11.9205, 43.1428)
Luminance	0.1192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#455BB1 #B19B45

analogous

#4591B1 #455BB1 #6545B1

triadic

#455BB1 #B1455B #5BB145

tetradic

#455BB1 #B14591 #B19B45 #45B165

square

#455BB1 #B14591 #B19B45 #45B165

split-complementary

#455BB1 #B16545 #91B145

monochromatic

#232E59 #344485 #455BB1 #6D7FC6 #99A6D7

Accessibility & contrast

On white

6.20

#455BB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#455BB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #455BB1

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##455BB1	#FFFFFF	#000000	##FFFFFF
##455BB1	1.00	6.20	3.38	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3066B4

Deuteranopia (green-blind)

#1C5CAF

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #455bb1;
/* rgb */ color: rgb(69, 91, 177);
/* oklch */ color: oklch(49.9% 0.139 270.0);

Tailwind

colors: {
  custom: {
    50: '#8389c9',
    500: '#455bb1',
    950: '#000000',
  },
}

SCSS

$custom: #455bb1;
$custom-light: #8389c9;
$custom-dark: #000000;

JSON

{
  "hex": "#455bb1",
  "rgb": {
    "r": 69,
    "g": 91,
    "b": 177
  },
  "hsl": {
    "h": 227.778,
    "s": 43.902,
    "l": 48.235
  },
  "oklch": {
    "l": 0.49907,
    "c": 0.13856,
    "h": 270
  },
  "luminance": 0.11922
}

Semantic roles & 50–950 ramp

primary

#455BB1

secondary

#C3B98E

accent

#BA54D4

background

#F8F8FC

surface

#F0EFF8

border

#CBCAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #455BB1

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

Preview Lab → · Contrast checker → · Palette generator →