#2188A8#2188A8

#2188A8 is a mid, moderate cyan. Relative luminance 0.208; OKLCH L 58.5% C 0.101 H 224.1°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#2188A8
RGB	rgb(33, 136, 168)
HSL	hsl(194, 67%, 39%)
HSV	hsv(194, 80%, 66%)
CMYK	cmyk(80.4%, 19%, 0%, 34.1%)
CIE-LAB	lab(52.68, -17.14, -25.03)
CIE-LCH	lch(52.68, 30.34, 235.60°)
OKLab	oklab(58.5% -0.0723 -0.0702)
OKLCH	oklch(58.5% 0.101 224.1)
XYZ	xyz(16.4963, 20.7568, 40.1752)
Luminance	0.2076 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2188A8 #A84121

analogous

#21A885 #2188A8 #2145A8

triadic

#2188A8 #A82188 #88A821

tetradic

#2188A8 #8521A8 #A84121 #45A821

square

#2188A8 #8521A8 #A84121 #45A821

split-complementary

#2188A8 #A82145 #A88521

monochromatic

#0D3542 #175F75 #2188A8 #30AFD6 #63C3E0

Accessibility & contrast

On white

4.08

#2188A8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#2188A8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2188A8

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2188A8	#FFFFFF	#000000	##000000
##2188A8	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7685AA

Deuteranopia (green-blind)

#6478A8

Tritanopia (blue-blind)

#009292

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #2188a8;
/* rgb */ color: rgb(33, 136, 168);
/* oklch */ color: oklch(58.5% 0.101 224.1);

Tailwind

colors: {
  custom: {
    50: '#74aac2',
    500: '#2188a8',
    950: '#000000',
  },
}

SCSS

$custom: #2188a8;
$custom-light: #74aac2;
$custom-dark: #000000;

JSON

{
  "hex": "#2188a8",
  "rgb": {
    "r": 33,
    "g": 136,
    "b": 168
  },
  "hsl": {
    "h": 194.222,
    "s": 67.164,
    "l": 39.412
  },
  "oklch": {
    "l": 0.58496,
    "c": 0.10082,
    "h": 224.1
  },
  "luminance": 0.20759
}

Semantic roles & 50–950 ramp

primary

#2188A8

secondary

#C5785F

accent

#673EEA

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #2188A8

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

Preview Lab → · Contrast checker → · Palette generator →