#3145A8#3145A8

#3145A8 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.6% C 0.160 H 269.8°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#3145A8
RGB	rgb(49, 69, 168)
HSL	hsl(230, 55%, 43%)
HSV	hsv(230, 71%, 66%)
CMYK	cmyk(70.8%, 58.9%, 0%, 34.1%)
CIE-LAB	lab(33.43, 26.57, -55.57)
CIE-LCH	lch(33.43, 61.60, 295.55°)
OKLab	oklab(43.63% -0.0006 -0.1602)
OKLCH	oklch(43.63% 0.16 269.8)
XYZ	xyz(10.4602, 7.7353, 37.9800)
Luminance	0.0774 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3145A8 #A89431

analogous

#3180A8 #3145A8 #5831A8

triadic

#3145A8 #A83145 #45A831

tetradic

#3145A8 #A83180 #A89431 #31A858

square

#3145A8 #A83180 #A89431 #31A858

split-complementary

#3145A8 #A85831 #80A831

monochromatic

#151E49 #233279 #3145A8 #4C61CB #7B8BD8

Accessibility & contrast

On white

8.24

#3145A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#3145A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3145A8

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3145A8	#FFFFFF	#000000	##FFFFFF
##3145A8	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AB

Deuteranopia (green-blind)

#0049A6

Tritanopia (blue-blind)

#005E6F

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3145a8;
/* rgb */ color: rgb(49, 69, 168);
/* oklch */ color: oklch(43.6% 0.160 269.8);

Tailwind

colors: {
  custom: {
    50: '#7978c3',
    500: '#3145a8',
    950: '#000000',
  },
}

SCSS

$custom: #3145a8;
$custom-light: #7978c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3145a8",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 168
  },
  "hsl": {
    "h": 229.916,
    "s": 54.839,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4363,
    "c": 0.1602,
    "h": 269.8
  },
  "luminance": 0.07736
}

Semantic roles & 50–950 ramp

primary

#3145A8

secondary

#C1B474

accent

#C54ADE

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3145A8

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

Preview Lab → · Contrast checker → · Palette generator →