#4283BA#4283BA

#4283BA is a mid, moderate cyan. Relative luminance 0.209; OKLCH L 59.2% C 0.108 H 246.5°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#4283BA
RGB	rgb(66, 131, 186)
HSL	hsl(208, 48%, 49%)
HSV	hsv(208, 65%, 73%)
CMYK	cmyk(64.5%, 29.6%, 0%, 27.1%)
CIE-LAB	lab(52.88, -3.39, -35.00)
CIE-LCH	lch(52.88, 35.17, 264.46°)
OKLab	oklab(59.17% -0.043 -0.0987)
OKLCH	oklch(59.17% 0.108 246.5)
XYZ	xyz(19.2227, 20.9341, 49.4725)
Luminance	0.2094 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4283BA #BA7942

analogous

#42BAB5 #4283BA #4247BA

triadic

#4283BA #BA4283 #83BA42

tetradic

#4283BA #B542BA #BA7942 #47BA42

square

#4283BA #B542BA #BA7942 #47BA42

split-complementary

#4283BA #BA4247 #BAB542

monochromatic

#224360 #32638D #4283BA #6EA1CB #9BBEDB

Accessibility & contrast

On white

4.05

#4283BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#4283BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4283BA

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4283BA	#FFFFFF	#000000	##000000
##4283BA	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B85BC

Deuteranopia (green-blind)

#5A79B9

Tritanopia (blue-blind)

#009096

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4283ba;
/* rgb */ color: rgb(66, 131, 186);
/* oklch */ color: oklch(59.2% 0.108 246.5);

Tailwind

colors: {
  custom: {
    50: '#82a6cf',
    500: '#4283ba',
    950: '#000000',
  },
}

SCSS

$custom: #4283ba;
$custom-light: #82a6cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4283ba",
  "rgb": {
    "r": 66,
    "g": 131,
    "b": 186
  },
  "hsl": {
    "h": 207.5,
    "s": 47.619,
    "l": 49.412
  },
  "oklch": {
    "l": 0.59171,
    "c": 0.1077,
    "h": 246.5
  },
  "luminance": 0.20936
}

Semantic roles & 50–950 ramp

primary

#4283BA

secondary

#C8AA90

accent

#8E51D7

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #4283BA

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

Preview Lab → · Contrast checker → · Palette generator →