#3988B6#3988B6

#3988B6 is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.8% C 0.104 H 237.7°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#3988B6
RGB	rgb(57, 136, 182)
HSL	hsl(202, 52%, 47%)
HSV	hsv(202, 69%, 71%)
CMYK	cmyk(68.7%, 25.3%, 0%, 28.6%)
CIE-LAB	lab(53.87, -9.17, -31.18)
CIE-LCH	lch(53.87, 32.50, 253.62°)
OKLab	oklab(59.81% -0.0555 -0.0877)
OKLCH	oklch(59.81% 0.104 237.7)
XYZ	xyz(18.9317, 21.8535, 47.4673)
Luminance	0.2186 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3988B6 #B66739

analogous

#39B6A6 #3988B6 #394AB6

triadic

#3988B6 #B63988 #88B639

tetradic

#3988B6 #A639B6 #B66739 #4AB639

square

#3988B6 #A639B6 #B66739 #4AB639

split-complementary

#3988B6 #B6394A #B6A639

monochromatic

#1C4259 #2A6587 #3988B6 #5FA5CD #8EBFDC

Accessibility & contrast

On white

3.91

#3988B6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#3988B6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3988B6

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3988B6	#FFFFFF	#000000	##000000
##3988B6	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7288B8

Deuteranopia (green-blind)

#617BB5

Tritanopia (blue-blind)

#009498

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3988b6;
/* rgb */ color: rgb(57, 136, 182);
/* oklch */ color: oklch(59.8% 0.104 237.7);

Tailwind

colors: {
  custom: {
    50: '#7eaacc',
    500: '#3988b6',
    950: '#000000',
  },
}

SCSS

$custom: #3988b6;
$custom-light: #7eaacc;
$custom-dark: #000000;

JSON

{
  "hex": "#3988b6",
  "rgb": {
    "r": 57,
    "g": 136,
    "b": 182
  },
  "hsl": {
    "h": 202.08,
    "s": 52.301,
    "l": 46.863
  },
  "oklch": {
    "l": 0.59811,
    "c": 0.10381,
    "h": 237.7
  },
  "luminance": 0.21856
}

Semantic roles & 50–950 ramp

primary

#3988B6

secondary

#C69D85

accent

#814CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3988B6

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

Preview Lab → · Contrast checker → · Palette generator →