#3987BD#3987BD

#3987BD is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.9% C 0.112 H 242.3°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#3987BD
RGB	rgb(57, 135, 189)
HSL	hsl(205, 54%, 48%)
HSV	hsv(205, 70%, 74%)
CMYK	cmyk(69.8%, 28.6%, 0%, 25.9%)
CIE-LAB	lab(53.89, -6.18, -35.15)
CIE-LCH	lch(53.89, 35.69, 260.03°)
OKLab	oklab(59.93% -0.0521 -0.0993)
OKLCH	oklch(59.93% 0.112 242.3)
XYZ	xyz(19.5331, 21.8698, 51.3261)
Luminance	0.2187 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3987BD #BD6F39

analogous

#39BDB1 #3987BD #3945BD

triadic

#3987BD #BD3987 #87BD39

tetradic

#3987BD #B139BD #BD6F39 #45BD39

square

#3987BD #B139BD #BD6F39 #45BD39

split-complementary

#3987BD #BD3945 #BDB139

monochromatic

#1D445F #2B658E #3987BD #63A3D0 #92BFDE

Accessibility & contrast

On white

3.91

#3987BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#3987BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3987BD

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3987BD	#FFFFFF	#000000	##000000
##3987BD	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)

#6E88BF

Deuteranopia (green-blind)

#5C7BBC

Tritanopia (blue-blind)

#00949A

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3987bd;
/* rgb */ color: rgb(57, 135, 189);
/* oklch */ color: oklch(59.9% 0.112 242.3);

Tailwind

colors: {
  custom: {
    50: '#7fa9d1',
    500: '#3987bd',
    950: '#000000',
  },
}

SCSS

$custom: #3987bd;
$custom-light: #7fa9d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3987bd",
  "rgb": {
    "r": 57,
    "g": 135,
    "b": 189
  },
  "hsl": {
    "h": 204.545,
    "s": 53.659,
    "l": 48.235
  },
  "oklch": {
    "l": 0.59928,
    "c": 0.11213,
    "h": 242.3
  },
  "luminance": 0.21872
}

Semantic roles & 50–950 ramp

primary

#3987BD

secondary

#C9A389

accent

#874BDD

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3987BD

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

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