#3987BA#3987BA

#3987BA is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.8% C 0.109 H 240.8°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#3987BA
RGB	rgb(57, 135, 186)
HSL	hsl(204, 53%, 48%)
HSV	hsv(204, 69%, 73%)
CMYK	cmyk(69.4%, 27.4%, 0%, 27.1%)
CIE-LAB	lab(53.75, -7.22, -33.66)
CIE-LCH	lch(53.75, 34.42, 257.89°)
OKLab	oklab(59.77% -0.0531 -0.0949)
OKLCH	oklch(59.77% 0.109 240.8)
XYZ	xyz(19.2108, 21.7409, 49.6288)
Luminance	0.2174 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3987BA #BA6C39

analogous

#39BAAC #3987BA #3947BA

triadic

#3987BA #BA3987 #87BA39

tetradic

#3987BA #AC39BA #BA6C39 #47BA39

square

#3987BA #AC39BA #BA6C39 #47BA39

split-complementary

#3987BA #BA3947 #BAAC39

monochromatic

#1C435C #2B658B #3987BA #61A4CF #90BFDD

Accessibility & contrast

On white

3.93

#3987BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#3987BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3987BA

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3987BA	#FFFFFF	#000000	##000000
##3987BA	1.00	3.93	5.35	5.35
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7087BC

Deuteranopia (green-blind)

#5E7BB9

Tritanopia (blue-blind)

#009499

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3987ba;
/* rgb */ color: rgb(57, 135, 186);
/* oklch */ color: oklch(59.8% 0.109 240.8);

Tailwind

colors: {
  custom: {
    50: '#7ea9cf',
    500: '#3987ba',
    950: '#000000',
  },
}

SCSS

$custom: #3987ba;
$custom-light: #7ea9cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3987ba",
  "rgb": {
    "r": 57,
    "g": 135,
    "b": 186
  },
  "hsl": {
    "h": 203.721,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.59774,
    "c": 0.10876,
    "h": 240.8
  },
  "luminance": 0.21743
}

Semantic roles & 50–950 ramp

primary

#3987BA

secondary

#C8A187

accent

#854BDC

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3987BA

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

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