#3F88CA#3F88CA

#3F88CA is a mid, vivid cyan. Relative luminance 0.229; OKLCH L 61.1% C 0.124 H 248.5°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#3F88CA
RGB	rgb(63, 136, 202)
HSL	hsl(208, 57%, 52%)
HSV	hsv(208, 69%, 79%)
CMYK	cmyk(68.8%, 32.7%, 0%, 20.8%)
CIE-LAB	lab(55.00, -1.32, -40.79)
CIE-LCH	lch(55.00, 40.81, 268.15°)
OKLab	oklab(61.06% -0.0454 -0.1156)
OKLCH	oklch(61.06% 0.124 248.5)
XYZ	xyz(21.5107, 22.9271, 59.1574)
Luminance	0.2293 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F88CA #CA813F

analogous

#3FCAC7 #3F88CA #3F43CA

triadic

#3F88CA #CA3F88 #88CA3F

tetradic

#3F88CA #C73FCA #CA813F #43CA3F

square

#3F88CA #C73FCA #CA813F #43CA3F

split-complementary

#3F88CA #CA3F43 #CAC73F

monochromatic

#1F4970 #2C69A0 #3F88CA #6FA6D7 #9FC3E4

Accessibility & contrast

On white

3.76

#3F88CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#3F88CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F88CA

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F88CA	#FFFFFF	#000000	##000000
##3F88CA	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B8BCD

Deuteranopia (green-blind)

#577EC9

Tritanopia (blue-blind)

#0098A0

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3f88ca;
/* rgb */ color: rgb(63, 136, 202);
/* oklch */ color: oklch(61.1% 0.124 248.5);

Tailwind

colors: {
  custom: {
    50: '#83aada',
    500: '#3f88ca',
    950: '#000000',
  },
}

SCSS

$custom: #3f88ca;
$custom-light: #83aada;
$custom-dark: #000000;

JSON

{
  "hex": "#3f88ca",
  "rgb": {
    "r": 63,
    "g": 136,
    "b": 202
  },
  "hsl": {
    "h": 208.489,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.61061,
    "c": 0.12418,
    "h": 248.5
  },
  "luminance": 0.22929
}

Semantic roles & 50–950 ramp

primary

#3F88CA

secondary

#D1B194

accent

#9048E0

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F88CA

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

Preview Lab → · Contrast checker → · Palette generator →