#455FCB#455FCB

#455FCB is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.6% C 0.170 H 269.5°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#455FCB
RGB	rgb(69, 95, 203)
HSL	hsl(228, 56%, 53%)
HSV	hsv(228, 66%, 80%)
CMYK	cmyk(66%, 53.2%, 0%, 20.4%)
CIE-LAB	lab(43.89, 25.35, -59.09)
CIE-LCH	lch(43.89, 64.30, 293.22°)
OKLab	oklab(52.58% -0.0014 -0.1698)
OKLCH	oklch(52.58% 0.17 269.5)
XYZ	xyz(17.3223, 13.7598, 58.2314)
Luminance	0.1376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#455FCB #CBB145

analogous

#45A2CB #455FCB #6E45CB

triadic

#455FCB #CB455F #5FCB45

tetradic

#455FCB #CB45A2 #CBB145 #45CB6E

square

#455FCB #CB45A2 #CBB145 #45CB6E

split-complementary

#455FCB #CB6E45 #A2CB45

monochromatic

#213175 #2E45A5 #455FCB #7588D8 #A5B1E6

Accessibility & contrast

On white

5.60

#455FCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#455FCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #455FCB

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##455FCB	#FFFFFF	#000000	##FFFFFF
##455FCB	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#146ECF

Deuteranopia (green-blind)

#0062C9

Tritanopia (blue-blind)

#00798C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #455fcb;
/* rgb */ color: rgb(69, 95, 203);
/* oklch */ color: oklch(52.6% 0.170 269.5);

Tailwind

colors: {
  custom: {
    50: '#878cdc',
    500: '#455fcb',
    950: '#000000',
  },
}

SCSS

$custom: #455fcb;
$custom-light: #878cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#455fcb",
  "rgb": {
    "r": 69,
    "g": 95,
    "b": 203
  },
  "hsl": {
    "h": 228.358,
    "s": 56.303,
    "l": 53.333
  },
  "oklch": {
    "l": 0.52577,
    "c": 0.16977,
    "h": 269.5
  },
  "luminance": 0.13761
}

Semantic roles & 50–950 ramp

primary

#455FCB

secondary

#D3C899

accent

#C248E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #455FCB

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

Preview Lab → · Contrast checker → · Palette generator →