#455FB5#455FB5

#455FB5 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.0% C 0.139 H 268.5°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#455FB5
RGB	rgb(69, 95, 181)
HSL	hsl(226, 45%, 49%)
HSV	hsv(226, 62%, 71%)
CMYK	cmyk(61.9%, 47.5%, 0%, 29%)
CIE-LAB	lab(42.44, 17.62, -48.65)
CIE-LCH	lch(42.44, 51.74, 289.91°)
OKLab	oklab(51.01% -0.0037 -0.139)
OKLCH	oklch(51.01% 0.139 268.5)
XYZ	xyz(14.8841, 12.7846, 45.3904)
Luminance	0.1279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#455FB5 #B59B45

analogous

#4597B5 #455FB5 #6345B5

triadic

#455FB5 #B5455F #5FB545

tetradic

#455FB5 #B54597 #B59B45 #45B563

square

#455FB5 #B54597 #B59B45 #45B563

split-complementary

#455FB5 #B56345 #97B545

monochromatic

#23305C #344889 #455FB5 #6F84C8 #9BAAD9

Accessibility & contrast

On white

5.90

#455FB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#455FB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #455FB5

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##455FB5	#FFFFFF	#000000	##FFFFFF
##455FB5	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3469B8

Deuteranopia (green-blind)

#215FB3

Tritanopia (blue-blind)

#007381

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #455fb5;
/* rgb */ color: rgb(69, 95, 181);
/* oklch */ color: oklch(51.0% 0.139 268.5);

Tailwind

colors: {
  custom: {
    50: '#838ccc',
    500: '#455fb5',
    950: '#000000',
  },
}

SCSS

$custom: #455fb5;
$custom-light: #838ccc;
$custom-dark: #000000;

JSON

{
  "hex": "#455fb5",
  "rgb": {
    "r": 69,
    "g": 95,
    "b": 181
  },
  "hsl": {
    "h": 226.071,
    "s": 44.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.51014,
    "c": 0.1391,
    "h": 268.5
  },
  "luminance": 0.12786
}

Semantic roles & 50–950 ramp

primary

#455FB5

secondary

#C5B991

accent

#B753D5

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #455FB5

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

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