#218AB2#218AB2

#218AB2 is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.5% C 0.108 H 229.4°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#218AB2
RGB	rgb(33, 138, 178)
HSL	hsl(197, 69%, 41%)
HSV	hsv(197, 81%, 70%)
CMYK	cmyk(81.5%, 22.5%, 0%, 30.2%)
CIE-LAB	lab(53.72, -14.73, -29.17)
CIE-LCH	lch(53.72, 32.68, 243.20°)
OKLab	oklab(59.47% -0.0705 -0.0821)
OKLCH	oklch(59.47% 0.108 229.4)
XYZ	xyz(17.7483, 21.7124, 45.3663)
Luminance	0.2172 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218AB2 #B24921

analogous

#21B292 #218AB2 #2142B2

triadic

#218AB2 #B2218A #8AB221

tetradic

#218AB2 #9221B2 #B24921 #42B221

square

#218AB2 #9221B2 #B24921 #42B221

split-complementary

#218AB2 #B22142 #B29221

monochromatic

#0E3A4B #17627E #218AB2 #36ADDA #6AC2E3

Accessibility & contrast

On white

3.93

#218AB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#218AB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218AB2

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218AB2	#FFFFFF	#000000	##000000
##218AB2	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7588B4

Deuteranopia (green-blind)

#627AB1

Tritanopia (blue-blind)

#009597

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #218ab2;
/* rgb */ color: rgb(33, 138, 178);
/* oklch */ color: oklch(59.5% 0.108 229.4);

Tailwind

colors: {
  custom: {
    50: '#75acc9',
    500: '#218ab2',
    950: '#000000',
  },
}

SCSS

$custom: #218ab2;
$custom-light: #75acc9;
$custom-dark: #000000;

JSON

{
  "hex": "#218ab2",
  "rgb": {
    "r": 33,
    "g": 138,
    "b": 178
  },
  "hsl": {
    "h": 196.552,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.59467,
    "c": 0.1082,
    "h": 229.4
  },
  "luminance": 0.21715
}

Semantic roles & 50–950 ramp

primary

#218AB2

secondary

#C98166

accent

#6D3CEC

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #218AB2

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

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