#3158A9#3158A9

#3158A9 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.7% C 0.138 H 262.9°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#3158A9
RGB	rgb(49, 88, 169)
HSL	hsl(221, 55%, 43%)
HSV	hsv(221, 71%, 66%)
CMYK	cmyk(71%, 47.9%, 0%, 33.7%)
CIE-LAB	lab(38.72, 14.39, -47.61)
CIE-LCH	lch(38.72, 49.73, 286.82°)
OKLab	oklab(47.66% -0.0169 -0.1365)
OKLCH	oklch(47.66% 0.138 262.9)
XYZ	xyz(11.9152, 10.4958, 38.9264)
Luminance	0.1050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3158A9 #A98231

analogous

#3194A9 #3158A9 #4631A9

triadic

#3158A9 #A93158 #58A931

tetradic

#3158A9 #A93194 #A98231 #31A946

square

#3158A9 #A93194 #A98231 #31A946

split-complementary

#3158A9 #A94631 #94A931

monochromatic

#15274A #233F7A #3158A9 #4C75CB #7C9AD9

Accessibility & contrast

On white

6.78

#3158A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#3158A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3158A9

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3158A9	#FFFFFF	#000000	##FFFFFF
##3158A9	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D61AC

Deuteranopia (green-blind)

#0F56A7

Tritanopia (blue-blind)

#006B78

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3158a9;
/* rgb */ color: rgb(49, 88, 169);
/* oklch */ color: oklch(47.7% 0.138 262.9);

Tailwind

colors: {
  custom: {
    50: '#7886c3',
    500: '#3158a9',
    950: '#000000',
  },
}

SCSS

$custom: #3158a9;
$custom-light: #7886c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3158a9",
  "rgb": {
    "r": 49,
    "g": 88,
    "b": 169
  },
  "hsl": {
    "h": 220.5,
    "s": 55.046,
    "l": 42.745
  },
  "oklch": {
    "l": 0.47656,
    "c": 0.13752,
    "h": 262.9
  },
  "luminance": 0.10497
}

Semantic roles & 50–950 ramp

primary

#3158A9

secondary

#C1A874

accent

#AE49DE

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3158A9

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

Preview Lab → · Contrast checker → · Palette generator →