#4283B2#4283B2

#4283B2 is a mid, moderate cyan. Relative luminance 0.206; OKLCH L 58.8% C 0.098 H 242.4°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#4283B2
RGB	rgb(66, 131, 178)
HSL	hsl(205, 46%, 48%)
HSV	hsv(205, 63%, 70%)
CMYK	cmyk(62.9%, 26.4%, 0%, 30.2%)
CIE-LAB	lab(52.51, -6.09, -30.98)
CIE-LCH	lch(52.51, 31.57, 258.88°)
OKLab	oklab(58.76% -0.0455 -0.0871)
OKLCH	oklch(58.76% 0.098 242.4)
XYZ	xyz(18.3959, 20.6034, 45.1182)
Luminance	0.2061 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4283B2 #B27142

analogous

#42B2A9 #4283B2 #424BB2

triadic

#4283B2 #B24283 #83B242

tetradic

#4283B2 #A942B2 #B27142 #4BB242

square

#4283B2 #A942B2 #B27142 #4BB242

split-complementary

#4283B2 #B2424B #B2A942

monochromatic

#214159 #316285 #4283B2 #6AA0C8 #96BCD8

Accessibility & contrast

On white

4.10

#4283B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#4283B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4283B2

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4283B2	#FFFFFF	#000000	##000000
##4283B2	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E84B4

Deuteranopia (green-blind)

#5F78B1

Tritanopia (blue-blind)

#008F93

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #4283b2;
/* rgb */ color: rgb(66, 131, 178);
/* oklch */ color: oklch(58.8% 0.098 242.4);

Tailwind

colors: {
  custom: {
    50: '#81a6c9',
    500: '#4283b2',
    950: '#000000',
  },
}

SCSS

$custom: #4283b2;
$custom-light: #81a6c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4283b2",
  "rgb": {
    "r": 66,
    "g": 131,
    "b": 178
  },
  "hsl": {
    "h": 205.179,
    "s": 45.902,
    "l": 47.843
  },
  "oklch": {
    "l": 0.58764,
    "c": 0.09829,
    "h": 242.4
  },
  "luminance": 0.20605
}

Semantic roles & 50–950 ramp

primary

#4283B2

secondary

#C4A38C

accent

#8952D6

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #4283B2

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

Preview Lab → · Contrast checker → · Palette generator →