#3158AA#3158AA

#3158AA is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.7% C 0.139 H 263.1°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#3158AA
RGB	rgb(49, 88, 170)
HSL	hsl(221, 55%, 43%)
HSV	hsv(221, 71%, 67%)
CMYK	cmyk(71.2%, 48.2%, 0%, 33.3%)
CIE-LAB	lab(38.78, 14.76, -48.09)
CIE-LCH	lch(38.78, 50.31, 287.07°)
OKLab	oklab(47.73% -0.0168 -0.1379)
OKLCH	oklch(47.73% 0.139 263.1)
XYZ	xyz(12.0095, 10.5334, 39.4227)
Luminance	0.1053 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3158AA #AA8331

analogous

#3194AA #3158AA #4631AA

triadic

#3158AA #AA3158 #58AA31

tetradic

#3158AA #AA3194 #AA8331 #31AA46

square

#3158AA #AA3194 #AA8331 #31AA46

split-complementary

#3158AA #AA4631 #94AA31

monochromatic

#16274B #233F7A #3158AA #4D76CC #7C9AD9

Accessibility & contrast

On white

6.76

#3158AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3158AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3158AA

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3158AA	#FFFFFF	#000000	##FFFFFF
##3158AA	1.00	6.76	3.11	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C61AD

Deuteranopia (green-blind)

#0C56A8

Tritanopia (blue-blind)

#006B79

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3158aa;
/* rgb */ color: rgb(49, 88, 170);
/* oklch */ color: oklch(47.7% 0.139 263.1);

Tailwind

colors: {
  custom: {
    50: '#7886c4',
    500: '#3158aa',
    950: '#000000',
  },
}

SCSS

$custom: #3158aa;
$custom-light: #7886c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3158aa",
  "rgb": {
    "r": 49,
    "g": 88,
    "b": 170
  },
  "hsl": {
    "h": 220.661,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.47727,
    "c": 0.13893,
    "h": 263.1
  },
  "luminance": 0.10535
}

Semantic roles & 50–950 ramp

primary

#3158AA

secondary

#C2A975

accent

#AE49DF

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3158AA

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

Preview Lab → · Contrast checker → · Palette generator →