#3988B7#3988B7

#3988B7 is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.9% C 0.105 H 238.3°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#3988B7
RGB	rgb(57, 136, 183)
HSL	hsl(202, 53%, 47%)
HSV	hsv(202, 69%, 72%)
CMYK	cmyk(68.9%, 25.7%, 0%, 28.2%)
CIE-LAB	lab(53.92, -8.82, -31.69)
CIE-LCH	lch(53.92, 32.89, 254.44°)
OKLab	oklab(59.86% -0.0551 -0.0892)
OKLCH	oklch(59.86% 0.105 238.3)
XYZ	xyz(19.0354, 21.8950, 48.0135)
Luminance	0.2190 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3988B7 #B76839

analogous

#39B7A7 #3988B7 #3949B7

triadic

#3988B7 #B73988 #88B739

tetradic

#3988B7 #A739B7 #B76839 #49B739

square

#3988B7 #A739B7 #B76839 #49B739

split-complementary

#3988B7 #B73949 #B7A739

monochromatic

#1C435A #2A6588 #3988B7 #60A5CD #8EBFDC

Accessibility & contrast

On white

3.90

#3988B7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#3988B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3988B7

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3988B7	#FFFFFF	#000000	##000000
##3988B7	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7288B9

Deuteranopia (green-blind)

#617BB6

Tritanopia (blue-blind)

#009498

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3988b7;
/* rgb */ color: rgb(57, 136, 183);
/* oklch */ color: oklch(59.9% 0.105 238.3);

Tailwind

colors: {
  custom: {
    50: '#7eaacc',
    500: '#3988b7',
    950: '#000000',
  },
}

SCSS

$custom: #3988b7;
$custom-light: #7eaacc;
$custom-dark: #000000;

JSON

{
  "hex": "#3988b7",
  "rgb": {
    "r": 57,
    "g": 136,
    "b": 183
  },
  "hsl": {
    "h": 202.381,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.5986,
    "c": 0.10487,
    "h": 238.3
  },
  "luminance": 0.21897
}

Semantic roles & 50–950 ramp

primary

#3988B7

secondary

#C79E85

accent

#824CDC

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3988B7

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

Preview Lab → · Contrast checker → · Palette generator →