#455BCB#455BCB

#455BCB is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.8% C 0.175 H 270.7°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#455BCB
RGB	rgb(69, 91, 203)
HSL	hsl(230, 56%, 53%)
HSV	hsv(230, 66%, 80%)
CMYK	cmyk(66%, 55.2%, 0%, 20.4%)
CIE-LAB	lab(42.85, 27.89, -60.77)
CIE-LCH	lch(42.85, 66.86, 294.65°)
OKLab	oklab(51.8% 0.0021 -0.1747)
OKLCH	oklch(51.8% 0.175 270.7)
XYZ	xyz(16.9712, 13.0576, 58.1143)
Luminance	0.1306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#455BCB #CBB545

analogous

#459ECB #455BCB #7245CB

triadic

#455BCB #CB455B #5BCB45

tetradic

#455BCB #CB459E #CBB545 #45CB72

square

#455BCB #CB459E #CBB545 #45CB72

split-complementary

#455BCB #CB7245 #9ECB45

monochromatic

#212F75 #2E42A5 #455BCB #7585D8 #A5AFE6

Accessibility & contrast

On white

5.81

#455BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#455BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #455BCB

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##455BCB	#FFFFFF	#000000	##FFFFFF
##455BCB	1.00	5.81	3.61	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCF

Deuteranopia (green-blind)

#005FC9

Tritanopia (blue-blind)

#00768A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #455bcb;
/* rgb */ color: rgb(69, 91, 203);
/* oklch */ color: oklch(51.8% 0.175 270.7);

Tailwind

colors: {
  custom: {
    50: '#8789dc',
    500: '#455bcb',
    950: '#000000',
  },
}

SCSS

$custom: #455bcb;
$custom-light: #8789dc;
$custom-dark: #000000;

JSON

{
  "hex": "#455bcb",
  "rgb": {
    "r": 69,
    "g": 91,
    "b": 203
  },
  "hsl": {
    "h": 230.149,
    "s": 56.303,
    "l": 53.333
  },
  "oklch": {
    "l": 0.51798,
    "c": 0.17476,
    "h": 270.7
  },
  "luminance": 0.13059
}

Semantic roles & 50–950 ramp

primary

#455BCB

secondary

#D3C999

accent

#C748E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0D0B15

muted

#7D7C83

Preview Lab

Preview with #455BCB

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

Preview Lab → · Contrast checker → · Palette generator →