#455BB3#455BB3

#455BB3 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.0% C 0.141 H 270.1°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#455BB3
RGB	rgb(69, 91, 179)
HSL	hsl(228, 44%, 49%)
HSV	hsv(228, 61%, 70%)
CMYK	cmyk(61.5%, 49.2%, 0%, 29.8%)
CIE-LAB	lab(41.22, 19.49, -49.44)
CIE-LCH	lch(41.22, 53.14, 291.51°)
OKLab	oklab(50.05% 0.0002 -0.1414)
OKLCH	oklch(50.05% 0.141 270.1)
XYZ	xyz(14.3293, 12.0009, 44.2004)
Luminance	0.1200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#455BB3 #B39D45

analogous

#4592B3 #455BB3 #6645B3

triadic

#455BB3 #B3455B #5BB345

tetradic

#455BB3 #B34592 #B39D45 #45B366

square

#455BB3 #B34592 #B39D45 #45B366

split-complementary

#455BB3 #B36645 #92B345

monochromatic

#232E5B #344587 #455BB3 #6E80C7 #9AA7D8

Accessibility & contrast

On white

6.18

#455BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#455BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #455BB3

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##455BB3	#FFFFFF	#000000	##FFFFFF
##455BB3	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E66B6

Deuteranopia (green-blind)

#185DB1

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #455bb3;
/* rgb */ color: rgb(69, 91, 179);
/* oklch */ color: oklch(50.0% 0.141 270.1);

Tailwind

colors: {
  custom: {
    50: '#8389ca',
    500: '#455bb3',
    950: '#000000',
  },
}

SCSS

$custom: #455bb3;
$custom-light: #8389ca;
$custom-dark: #000000;

JSON

{
  "hex": "#455bb3",
  "rgb": {
    "r": 69,
    "g": 91,
    "b": 179
  },
  "hsl": {
    "h": 228,
    "s": 44.355,
    "l": 48.627
  },
  "oklch": {
    "l": 0.50046,
    "c": 0.14141,
    "h": 270.1
  },
  "luminance": 0.12002
}

Semantic roles & 50–950 ramp

primary

#455BB3

secondary

#C4BA8F

accent

#BA54D4

background

#F8F8FC

surface

#F0EFF8

border

#CBCAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #455BB3

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

Preview Lab → · Contrast checker → · Palette generator →