#3988AB#3988AB

#3988AB is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.3% C 0.093 H 230.3°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#3988AB
RGB	rgb(57, 136, 171)
HSL	hsl(198, 50%, 45%)
HSV	hsv(198, 67%, 67%)
CMYK	cmyk(66.7%, 20.5%, 0%, 32.9%)
CIE-LAB	lab(53.40, -12.87, -25.60)
CIE-LCH	lch(53.40, 28.65, 243.30°)
OKLab	oklab(59.28% -0.0594 -0.0717)
OKLCH	oklch(59.28% 0.093 230.3)
XYZ	xyz(17.8393, 21.4166, 41.7138)
Luminance	0.2142 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3988AB #AB5C39

analogous

#39AB95 #3988AB #394FAB

triadic

#3988AB #AB3988 #88AB39

tetradic

#3988AB #9539AB #AB5C39 #4FAB39

square

#3988AB #9539AB #AB5C39 #4FAB39

split-complementary

#3988AB #AB394F #AB9539

monochromatic

#1A3F4F #2A637D #3988AB #59A6C8 #87BFD7

Accessibility & contrast

On white

3.97

#3988AB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#3988AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3988AB

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3988AB	#FFFFFF	#000000	##000000
##3988AB	1.00	3.97	5.28	5.28
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7686AD

Deuteranopia (green-blind)

#667AAB

Tritanopia (blue-blind)

#009294

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3988ab;
/* rgb */ color: rgb(57, 136, 171);
/* oklch */ color: oklch(59.3% 0.093 230.3);

Tailwind

colors: {
  custom: {
    50: '#7caac4',
    500: '#3988ab',
    950: '#000000',
  },
}

SCSS

$custom: #3988ab;
$custom-light: #7caac4;
$custom-dark: #000000;

JSON

{
  "hex": "#3988ab",
  "rgb": {
    "r": 57,
    "g": 136,
    "b": 171
  },
  "hsl": {
    "h": 198.421,
    "s": 50,
    "l": 44.706
  },
  "oklch": {
    "l": 0.59283,
    "c": 0.09309,
    "h": 230.3
  },
  "luminance": 0.21418
}

Semantic roles & 50–950 ramp

primary

#3988AB

secondary

#C1937F

accent

#794EDA

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #3988AB

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

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