#427DBB#427DBB

#427DBB is a mid, moderate cyan. Relative luminance 0.194; OKLCH L 57.8% C 0.114 H 251.4°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#427DBB
RGB	rgb(66, 125, 187)
HSL	hsl(211, 48%, 50%)
HSV	hsv(211, 65%, 73%)
CMYK	cmyk(64.7%, 33.2%, 0%, 26.7%)
CIE-LAB	lab(51.17, 0.50, -38.26)
CIE-LCH	lch(51.17, 38.27, 270.76°)
OKLab	oklab(57.84% -0.0364 -0.1083)
OKLCH	oklch(57.84% 0.114 251.4)
XYZ	xyz(18.5467, 19.4115, 49.7735)
Luminance	0.1941 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427DBB #BB8042

analogous

#42BABB #427DBB #4442BB

triadic

#427DBB #BB427D #7DBB42

tetradic

#427DBB #BB42BA #BB8042 #42BB44

square

#427DBB #BB42BA #BB8042 #42BB44

split-complementary

#427DBB #BB4442 #BABB42

monochromatic

#224161 #325F8E #427DBB #6E9CCC #9CBBDC

Accessibility & contrast

On white

4.30

#427DBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#427DBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DBB

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427DBB	#FFFFFF	#000000	##000000
##427DBB	1.00	4.30	4.88	4.88
#FFFFFF	4.30	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)

#6280BE

Deuteranopia (green-blind)

#5175BA

Tritanopia (blue-blind)

#008B93

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #427dbb;
/* rgb */ color: rgb(66, 125, 187);
/* oklch */ color: oklch(57.8% 0.114 251.4);

Tailwind

colors: {
  custom: {
    50: '#82a2d0',
    500: '#427dbb',
    950: '#000000',
  },
}

SCSS

$custom: #427dbb;
$custom-light: #82a2d0;
$custom-dark: #000000;

JSON

{
  "hex": "#427dbb",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 187
  },
  "hsl": {
    "h": 210.744,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.57841,
    "c": 0.11424,
    "h": 251.4
  },
  "luminance": 0.19413
}

Semantic roles & 50–950 ramp

primary

#427DBB

secondary

#C8AD91

accent

#9650D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0F14

muted

#7C7E82

Preview Lab

Preview with #427DBB

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

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