#3F88BA#3F88BA

#3F88BA is a mid, moderate cyan. Relative luminance 0.222; OKLCH L 60.2% C 0.105 H 241.5°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#3F88BA
RGB	rgb(63, 136, 186)
HSL	hsl(204, 49%, 49%)
HSV	hsv(204, 66%, 73%)
CMYK	cmyk(66.1%, 26.9%, 0%, 27.1%)
CIE-LAB	lab(54.25, -6.82, -32.87)
CIE-LCH	lch(54.25, 33.57, 258.28°)
OKLab	oklab(60.22% -0.0503 -0.0926)
OKLCH	oklch(60.22% 0.105 241.5)
XYZ	xyz(19.7136, 22.2082, 49.6925)
Luminance	0.2221 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F88BA #BA713F

analogous

#3FBAAF #3F88BA #3F4BBA

triadic

#3F88BA #BA3F88 #88BA3F

tetradic

#3F88BA #AF3FBA #BA713F #4BBA3F

square

#3F88BA #AF3FBA #BA713F #4BBA3F

split-complementary

#3F88BA #BA3F4B #BAAF3F

monochromatic

#20455F #30678C #3F88BA #6AA4CC #97C0DC

Accessibility & contrast

On white

3.86

#3F88BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#3F88BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F88BA

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F88BA	#FFFFFF	#000000	##000000
##3F88BA	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7188BC

Deuteranopia (green-blind)

#607CB9

Tritanopia (blue-blind)

#009499

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3f88ba;
/* rgb */ color: rgb(63, 136, 186);
/* oklch */ color: oklch(60.2% 0.105 241.5);

Tailwind

colors: {
  custom: {
    50: '#81aacf',
    500: '#3f88ba',
    950: '#000000',
  },
}

SCSS

$custom: #3f88ba;
$custom-light: #81aacf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f88ba",
  "rgb": {
    "r": 63,
    "g": 136,
    "b": 186
  },
  "hsl": {
    "h": 204.39,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.60223,
    "c": 0.10536,
    "h": 241.5
  },
  "luminance": 0.2221
}

Semantic roles & 50–950 ramp

primary

#3F88BA

secondary

#C8A58D

accent

#874FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F88BA

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

Preview Lab → · Contrast checker → · Palette generator →