#3759BE#3759BE

#3759BE is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.7% C 0.164 H 266.4°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#3759BE
RGB	rgb(55, 89, 190)
HSL	hsl(225, 55%, 48%)
HSV	hsv(225, 71%, 75%)
CMYK	cmyk(71.1%, 53.2%, 0%, 25.5%)
CIE-LAB	lab(40.69, 22.43, -56.76)
CIE-LCH	lch(40.69, 61.03, 291.56°)
OKLab	oklab(49.69% -0.0102 -0.1633)
OKLCH	oklch(49.69% 0.164 266.4)
XYZ	xyz(14.4389, 11.6732, 50.1974)
Luminance	0.1168 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3759BE #BE9C37

analogous

#379CBE #3759BE #5837BE

triadic

#3759BE #BE3759 #59BE37

tetradic

#3759BE #BE379C #BE9C37 #37BE58

square

#3759BE #BE379C #BE9C37 #37BE58

split-complementary

#3759BE #BE5837 #9CBE37

monochromatic

#1C2D5F #29438F #3759BE #617DD1 #90A4DF

Accessibility & contrast

On white

6.30

#3759BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#3759BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3759BE

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3759BE	#FFFFFF	#000000	##FFFFFF
##3759BE	1.00	6.30	3.34	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1166C2

Deuteranopia (green-blind)

#005ABC

Tritanopia (blue-blind)

#007183

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3759be;
/* rgb */ color: rgb(55, 89, 190);
/* oklch */ color: oklch(49.7% 0.164 266.4);

Tailwind

colors: {
  custom: {
    50: '#7f87d2',
    500: '#3759be',
    950: '#000000',
  },
}

SCSS

$custom: #3759be;
$custom-light: #7f87d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3759be",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 190
  },
  "hsl": {
    "h": 224.889,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.49688,
    "c": 0.1636,
    "h": 266.4
  },
  "luminance": 0.11675
}

Semantic roles & 50–950 ramp

primary

#3759BE

secondary

#CAB987

accent

#B949DE

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3759BE

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

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