#4058BB#4058BB

#4058BB is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.7% C 0.158 H 269.6°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#4058BB
RGB	rgb(64, 88, 187)
HSL	hsl(228, 49%, 49%)
HSV	hsv(228, 66%, 73%)
CMYK	cmyk(65.8%, 52.9%, 0%, 26.7%)
CIE-LAB	lab(40.66, 23.36, -55.03)
CIE-LCH	lch(40.66, 59.78, 293.00°)
OKLab	oklab(49.72% -0.0011 -0.158)
OKLCH	oklch(49.72% 0.158 269.6)
XYZ	xyz(14.5707, 11.6560, 48.4860)
Luminance	0.1166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4058BB #BBA340

analogous

#4096BB #4058BB #6640BB

triadic

#4058BB #BB4058 #58BB40

tetradic

#4058BB #BB4096 #BBA340 #40BB66

square

#4058BB #BB4096 #BBA340 #40BB66

split-complementary

#4058BB #BB6640 #96BB40

monochromatic

#212D60 #30438D #4058BB #6C7FCD #99A6DC

Accessibility & contrast

On white

6.30

#4058BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#4058BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4058BB

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4058BB	#FFFFFF	#000000	##FFFFFF
##4058BB	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1766BE

Deuteranopia (green-blind)

#005BB9

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4058bb;
/* rgb */ color: rgb(64, 88, 187);
/* oklch */ color: oklch(49.7% 0.158 269.6);

Tailwind

colors: {
  custom: {
    50: '#8286d0',
    500: '#4058bb',
    950: '#000000',
  },
}

SCSS

$custom: #4058bb;
$custom-light: #8286d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4058bb",
  "rgb": {
    "r": 64,
    "g": 88,
    "b": 187
  },
  "hsl": {
    "h": 228.293,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.49722,
    "c": 0.15802,
    "h": 269.6
  },
  "luminance": 0.11657
}

Semantic roles & 50–950 ramp

primary

#4058BB

secondary

#C8BD8F

accent

#BE4FD9

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4058BB

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

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