#218BB2#218BB2

#218BB2 is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.7% C 0.108 H 228.5°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#218BB2
RGB	rgb(33, 139, 178)
HSL	hsl(196, 69%, 41%)
HSV	hsv(196, 81%, 70%)
CMYK	cmyk(81.5%, 21.9%, 0%, 30.2%)
CIE-LAB	lab(54.03, -15.29, -28.69)
CIE-LCH	lch(54.03, 32.51, 241.96°)
OKLab	oklab(59.71% -0.0714 -0.0807)
OKLCH	oklch(59.71% 0.108 228.5)
XYZ	xyz(17.8924, 22.0007, 45.4144)
Luminance	0.2200 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218BB2 #B24821

analogous

#21B291 #218BB2 #2143B2

triadic

#218BB2 #B2218B #8BB221

tetradic

#218BB2 #9121B2 #B24821 #43B221

square

#218BB2 #9121B2 #B24821 #43B221

split-complementary

#218BB2 #B22143 #B29121

monochromatic

#0E3A4B #17637E #218BB2 #36AEDA #6AC3E3

Accessibility & contrast

On white

3.89

#218BB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#218BB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218BB2

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218BB2	#FFFFFF	#000000	##000000
##218BB2	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7789B4

Deuteranopia (green-blind)

#647BB1

Tritanopia (blue-blind)

#009698

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #218bb2;
/* rgb */ color: rgb(33, 139, 178);
/* oklch */ color: oklch(59.7% 0.108 228.5);

Tailwind

colors: {
  custom: {
    50: '#75adc9',
    500: '#218bb2',
    950: '#000000',
  },
}

SCSS

$custom: #218bb2;
$custom-light: #75adc9;
$custom-dark: #000000;

JSON

{
  "hex": "#218bb2",
  "rgb": {
    "r": 33,
    "g": 139,
    "b": 178
  },
  "hsl": {
    "h": 196.138,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.59713,
    "c": 0.10779,
    "h": 228.5
  },
  "luminance": 0.22003
}

Semantic roles & 50–950 ramp

primary

#218BB2

secondary

#C98066

accent

#6B3CEC

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #218BB2

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

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