#2165B3#2165B3

#2165B3 is a mid, vivid cyan. Relative luminance 0.129; OKLCH L 50.7% C 0.141 H 254.7°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#2165B3
RGB	rgb(33, 101, 179)
HSL	hsl(212, 69%, 42%)
HSV	hsv(212, 82%, 70%)
CMYK	cmyk(81.6%, 43.6%, 0%, 29.8%)
CIE-LAB	lab(42.59, 7.79, -47.32)
CIE-LCH	lch(42.59, 47.96, 279.35°)
OKLab	oklab(50.7% -0.037 -0.1356)
OKLCH	oklch(50.7% 0.141 254.7)
XYZ	xyz(13.4145, 12.8837, 44.4189)
Luminance	0.1288 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2165B3 #B36F21

analogous

#21AEB3 #2165B3 #2621B3

triadic

#2165B3 #B32165 #65B321

tetradic

#2165B3 #B321AE #B36F21 #21B326

square

#2165B3 #B321AE #B36F21 #21B326

split-complementary

#2165B3 #B32621 #AEB321

monochromatic

#0E2B4C #17487F #2165B3 #3783DA #6BA3E4

Accessibility & contrast

On white

5.87

#2165B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#2165B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2165B3

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2165B3	#FFFFFF	#000000	##FFFFFF
##2165B3	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6CB6

Deuteranopia (green-blind)

#205EB1

Tritanopia (blue-blind)

#007883

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #2165b3;
/* rgb */ color: rgb(33, 101, 179);
/* oklch */ color: oklch(50.7% 0.141 254.7);

Tailwind

colors: {
  custom: {
    50: '#7490ca',
    500: '#2165b3',
    950: '#000000',
  },
}

SCSS

$custom: #2165b3;
$custom-light: #7490ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2165b3",
  "rgb": {
    "r": 33,
    "g": 101,
    "b": 179
  },
  "hsl": {
    "h": 212.055,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.50695,
    "c": 0.14058,
    "h": 254.7
  },
  "luminance": 0.12885
}

Semantic roles & 50–950 ramp

primary

#2165B3

secondary

#CA9B66

accent

#9A3CEC

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2165B3

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

Preview Lab → · Contrast checker → · Palette generator →