#427ACB#427ACB

#427ACB is a mid, vivid blue. Relative luminance 0.194; OKLCH L 58.1% C 0.138 H 257.8°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#427ACB
RGB	rgb(66, 122, 203)
HSL	hsl(215, 57%, 53%)
HSV	hsv(215, 67%, 80%)
CMYK	cmyk(67.5%, 39.9%, 0%, 20.4%)
CIE-LAB	lab(51.14, 7.92, -47.46)
CIE-LCH	lch(51.14, 48.12, 279.48°)
OKLab	oklab(58.09% -0.0293 -0.1352)
OKLCH	oklch(58.09% 0.138 257.8)
XYZ	xyz(19.9819, 19.3871, 59.1774)
Luminance	0.1939 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427ACB #CB9342

analogous

#42BFCB #427ACB #4E42CB

triadic

#427ACB #CB427A #7ACB42

tetradic

#427ACB #CB42BF #CB9342 #42CB4E

square

#427ACB #CB42BF #CB9342 #42CB4E

split-complementary

#427ACB #CB4E42 #BFCB42

monochromatic

#204273 #2D5DA3 #427ACB #729CD8 #A2BEE5

Accessibility & contrast

On white

4.31

#427ACB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#427ACB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427ACB

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427ACB	#FFFFFF	#000000	##000000
##427ACB	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5581CE

Deuteranopia (green-blind)

#4074C9

Tritanopia (blue-blind)

#008D99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #427acb;
/* rgb */ color: rgb(66, 122, 203);
/* oklch */ color: oklch(58.1% 0.138 257.8);

Tailwind

colors: {
  custom: {
    50: '#85a0db',
    500: '#427acb',
    950: '#000000',
  },
}

SCSS

$custom: #427acb;
$custom-light: #85a0db;
$custom-dark: #000000;

JSON

{
  "hex": "#427acb",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 203
  },
  "hsl": {
    "h": 215.474,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.58092,
    "c": 0.13838,
    "h": 257.8
  },
  "luminance": 0.19389
}

Semantic roles & 50–950 ramp

primary

#427ACB

secondary

#D2BA97

accent

#A248E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #427ACB

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

Preview Lab → · Contrast checker → · Palette generator →