#3040A5#3040A5

#3040A5 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.4% C 0.163 H 270.8°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#3040A5
RGB	rgb(48, 64, 165)
HSL	hsl(232, 55%, 42%)
HSV	hsv(232, 71%, 65%)
CMYK	cmyk(70.9%, 61.2%, 0%, 35.3%)
CIE-LAB	lab(31.83, 28.62, -56.37)
CIE-LCH	lch(31.83, 63.22, 296.92°)
OKLab	oklab(42.36% 0.0023 -0.1626)
OKLCH	oklch(42.36% 0.163 270.8)
XYZ	xyz(9.8415, 7.0108, 36.4246)
Luminance	0.0701 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3040A5 #A59530

analogous

#307BA5 #3040A5 #5B30A5

triadic

#3040A5 #A53040 #40A530

tetradic

#3040A5 #A5307B #A59530 #30A55B

square

#3040A5 #A5307B #A59530 #30A55B

split-complementary

#3040A5 #A55B30 #7BA530

monochromatic

#141B46 #222E76 #3040A5 #485ACA #7885D8

Accessibility & contrast

On white

8.74

#3040A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3040A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3040A5

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3040A5	#FFFFFF	#000000	##FFFFFF
##3040A5	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A8

Deuteranopia (green-blind)

#0046A3

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3040a5;
/* rgb */ color: rgb(48, 64, 165);
/* oklch */ color: oklch(42.4% 0.163 270.8);

Tailwind

colors: {
  custom: {
    50: '#7874c1',
    500: '#3040a5',
    950: '#000000',
  },
}

SCSS

$custom: #3040a5;
$custom-light: #7874c1;
$custom-dark: #000000;

JSON

{
  "hex": "#3040a5",
  "rgb": {
    "r": 48,
    "g": 64,
    "b": 165
  },
  "hsl": {
    "h": 231.795,
    "s": 54.93,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42355,
    "c": 0.16265,
    "h": 270.8
  },
  "luminance": 0.07012
}

Semantic roles & 50–950 ramp

primary

#3040A5

secondary

#C0B571

accent

#CA4ADE

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3040A5

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

Preview Lab → · Contrast checker → · Palette generator →