#455CBB#455CBB

#455CBB is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.8% C 0.151 H 270.0°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#455CBB
RGB	rgb(69, 92, 187)
HSL	hsl(228, 46%, 50%)
HSV	hsv(228, 63%, 73%)
CMYK	cmyk(63.1%, 50.8%, 0%, 26.7%)
CIE-LAB	lab(42.01, 21.64, -52.85)
CIE-LCH	lch(42.01, 57.11, 292.27°)
OKLab	oklab(50.81% 0.0001 -0.1514)
OKLCH	oklch(50.81% 0.151 270)
XYZ	xyz(15.2480, 12.5060, 48.6144)
Luminance	0.1251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#455CBB #BBA445

analogous

#4597BB #455CBB #6945BB

triadic

#455CBB #BB455C #5CBB45

tetradic

#455CBB #BB4597 #BBA445 #45BB69

square

#455CBB #BB4597 #BBA445 #45BB69

split-complementary

#455CBB #BB6945 #97BB45

monochromatic

#243062 #34468F #455CBB #7283CB #9FABDC

Accessibility & contrast

On white

6.00

#455CBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#455CBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #455CBB

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##455CBB	#FFFFFF	#000000	##FFFFFF
##455CBB	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2769BE

Deuteranopia (green-blind)

#025EB9

Tritanopia (blue-blind)

#007283

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #455cbb;
/* rgb */ color: rgb(69, 92, 187);
/* oklch */ color: oklch(50.8% 0.151 270.0);

Tailwind

colors: {
  custom: {
    50: '#8489d0',
    500: '#455cbb',
    950: '#000000',
  },
}

SCSS

$custom: #455cbb;
$custom-light: #8489d0;
$custom-dark: #000000;

JSON

{
  "hex": "#455cbb",
  "rgb": {
    "r": 69,
    "g": 92,
    "b": 187
  },
  "hsl": {
    "h": 228.305,
    "s": 46.457,
    "l": 50.196
  },
  "oklch": {
    "l": 0.50814,
    "c": 0.15143,
    "h": 270
  },
  "luminance": 0.12507
}

Semantic roles & 50–950 ramp

primary

#455CBB

secondary

#C8BE94

accent

#BC52D6

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #455CBB

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

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