#427FAB#427FAB

#427FAB is a mid, moderate cyan. Relative luminance 0.193; OKLCH L 57.5% C 0.093 H 242.1°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#427FAB
RGB	rgb(66, 127, 171)
HSL	hsl(205, 44%, 46%)
HSV	hsv(205, 61%, 67%)
CMYK	cmyk(61.4%, 25.7%, 0%, 32.9%)
CIE-LAB	lab(51.01, -6.10, -29.28)
CIE-LCH	lch(51.01, 29.91, 258.23°)
OKLab	oklab(57.47% -0.0435 -0.0822)
OKLCH	oklch(57.47% 0.093 242.1)
XYZ	xyz(17.1841, 19.2756, 41.3352)
Luminance	0.1928 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427FAB #AB6E42

analogous

#42ABA3 #427FAB #424BAB

triadic

#427FAB #AB427F #7FAB42

tetradic

#427FAB #A342AB #AB6E42 #4BAB42

square

#427FAB #A342AB #AB6E42 #4BAB42

split-complementary

#427FAB #AB424B #ABA342

monochromatic

#203D53 #315E7F #427FAB #669DC4 #92B9D5

Accessibility & contrast

On white

4.33

#427FAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#427FAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427FAB

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427FAB	#FFFFFF	#000000	##000000
##427FAB	1.00	4.33	4.86	4.86
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7FAD

Deuteranopia (green-blind)

#5D75AA

Tritanopia (blue-blind)

#008A8E

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #427fab;
/* rgb */ color: rgb(66, 127, 171);
/* oklch */ color: oklch(57.5% 0.093 242.1);

Tailwind

colors: {
  custom: {
    50: '#80a4c4',
    500: '#427fab',
    950: '#000000',
  },
}

SCSS

$custom: #427fab;
$custom-light: #80a4c4;
$custom-dark: #000000;

JSON

{
  "hex": "#427fab",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 171
  },
  "hsl": {
    "h": 205.143,
    "s": 44.304,
    "l": 46.471
  },
  "oklch": {
    "l": 0.57472,
    "c": 0.09302,
    "h": 242.1
  },
  "luminance": 0.19277
}

Semantic roles & 50–950 ramp

primary

#427FAB

secondary

#C0A088

accent

#8A54D4

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #427FAB

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

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