#427FBA#427FBA

#427FBA is a mid, moderate cyan. Relative luminance 0.199; OKLCH L 58.2% C 0.111 H 249.6°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#427FBA
RGB	rgb(66, 127, 186)
HSL	hsl(210, 48%, 49%)
HSV	hsv(210, 65%, 73%)
CMYK	cmyk(64.5%, 31.7%, 0%, 27.1%)
CIE-LAB	lab(51.70, -1.03, -36.85)
CIE-LCH	lch(51.70, 36.86, 268.40°)
OKLab	oklab(58.25% -0.0388 -0.1041)
OKLCH	oklch(58.25% 0.111 249.6)
XYZ	xyz(18.6958, 19.8803, 49.2969)
Luminance	0.1988 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427FBA #BA7D42

analogous

#42BAB9 #427FBA #4243BA

triadic

#427FBA #BA427F #7FBA42

tetradic

#427FBA #B942BA #BA7D42 #43BA42

square

#427FBA #B942BA #BA7D42 #43BA42

split-complementary

#427FBA #BA4243 #BAB942

monochromatic

#224160 #32608D #427FBA #6E9DCB #9BBCDB

Accessibility & contrast

On white

4.22

#427FBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#427FBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427FBA

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427FBA	#FFFFFF	#000000	##000000
##427FBA	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6582BD

Deuteranopia (green-blind)

#5576B9

Tritanopia (blue-blind)

#008D94

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #427fba;
/* rgb */ color: rgb(66, 127, 186);
/* oklch */ color: oklch(58.2% 0.111 249.6);

Tailwind

colors: {
  custom: {
    50: '#82a3cf',
    500: '#427fba',
    950: '#000000',
  },
}

SCSS

$custom: #427fba;
$custom-light: #82a3cf;
$custom-dark: #000000;

JSON

{
  "hex": "#427fba",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 186
  },
  "hsl": {
    "h": 209.5,
    "s": 47.619,
    "l": 49.412
  },
  "oklch": {
    "l": 0.58246,
    "c": 0.11113,
    "h": 249.6
  },
  "luminance": 0.19882
}

Semantic roles & 50–950 ramp

primary

#427FBA

secondary

#C8AB90

accent

#9351D7

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #427FBA

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

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