#455BB5#455BB5

#455BB5 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.2% C 0.144 H 270.2°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#455BB5
RGB	rgb(69, 91, 181)
HSL	hsl(228, 45%, 49%)
HSV	hsv(228, 62%, 71%)
CMYK	cmyk(61.9%, 49.7%, 0%, 29%)
CIE-LAB	lab(41.35, 20.18, -50.40)
CIE-LCH	lch(41.35, 54.29, 291.82°)
OKLab	oklab(50.19% 0.0004 -0.1442)
OKLCH	oklch(50.19% 0.144 270.2)
XYZ	xyz(14.5330, 12.0824, 45.2734)
Luminance	0.1208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#455BB5 #B59F45

analogous

#4593B5 #455BB5 #6745B5

triadic

#455BB5 #B5455B #5BB545

tetradic

#455BB5 #B54593 #B59F45 #45B567

square

#455BB5 #B54593 #B59F45 #45B567

split-complementary

#455BB5 #B56745 #93B545

monochromatic

#232E5C #344589 #455BB5 #6F81C8 #9BA7D9

Accessibility & contrast

On white

6.15

#455BB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#455BB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #455BB5

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##455BB5	#FFFFFF	#000000	##FFFFFF
##455BB5	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B67B8

Deuteranopia (green-blind)

#135DB3

Tritanopia (blue-blind)

#00707F

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #455bb5;
/* rgb */ color: rgb(69, 91, 181);
/* oklch */ color: oklch(50.2% 0.144 270.2);

Tailwind

colors: {
  custom: {
    50: '#8389cc',
    500: '#455bb5',
    950: '#000000',
  },
}

SCSS

$custom: #455bb5;
$custom-light: #8389cc;
$custom-dark: #000000;

JSON

{
  "hex": "#455bb5",
  "rgb": {
    "r": 69,
    "g": 91,
    "b": 181
  },
  "hsl": {
    "h": 228.214,
    "s": 44.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.50185,
    "c": 0.14425,
    "h": 270.2
  },
  "luminance": 0.12084
}

Semantic roles & 50–950 ramp

primary

#455BB5

secondary

#C5BB91

accent

#BB53D5

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #455BB5

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

Preview Lab → · Contrast checker → · Palette generator →