#3988B8#3988B8

#3988B8 is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.9% C 0.106 H 238.8°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3988B8
RGB	rgb(57, 136, 184)
HSL	hsl(203, 53%, 47%)
HSV	hsv(203, 69%, 72%)
CMYK	cmyk(69%, 26.1%, 0%, 27.8%)
CIE-LAB	lab(53.96, -8.48, -32.19)
CIE-LCH	lch(53.96, 33.29, 255.24°)
OKLab	oklab(59.91% -0.0548 -0.0906)
OKLCH	oklch(59.91% 0.106 238.8)
XYZ	xyz(19.1399, 21.9368, 48.5636)
Luminance	0.2194 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3988B8 #B86939

analogous

#39B8A8 #3988B8 #3949B8

triadic

#3988B8 #B83988 #88B839

tetradic

#3988B8 #A839B8 #B86939 #49B839

square

#3988B8 #A839B8 #B86939 #49B839

split-complementary

#3988B8 #B83949 #B8A839

monochromatic

#1C435B #2B6589 #3988B8 #60A4CE #8FBFDC

Accessibility & contrast

On white

3.90

#3988B8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#3988B8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3988B8

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3988B8	#FFFFFF	#000000	##000000
##3988B8	1.00	3.90	5.39	5.39
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7288BA

Deuteranopia (green-blind)

#607BB7

Tritanopia (blue-blind)

#009498

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3988b8;
/* rgb */ color: rgb(57, 136, 184);
/* oklch */ color: oklch(59.9% 0.106 238.8);

Tailwind

colors: {
  custom: {
    50: '#7eaacd',
    500: '#3988b8',
    950: '#000000',
  },
}

SCSS

$custom: #3988b8;
$custom-light: #7eaacd;
$custom-dark: #000000;

JSON

{
  "hex": "#3988b8",
  "rgb": {
    "r": 57,
    "g": 136,
    "b": 184
  },
  "hsl": {
    "h": 202.677,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.5991,
    "c": 0.10593,
    "h": 238.8
  },
  "luminance": 0.21939
}

Semantic roles & 50–950 ramp

primary

#3988B8

secondary

#C79E86

accent

#824CDC

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3988B8

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

Preview Lab → · Contrast checker → · Palette generator →