#3138A1#3138A1

#3138A1 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.6% C 0.167 H 273.3°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#3138A1
RGB	rgb(49, 56, 161)
HSL	hsl(236, 53%, 41%)
HSV	hsv(236, 70%, 63%)
CMYK	cmyk(69.6%, 65.2%, 0%, 36.9%)
CIE-LAB	lab(29.55, 32.51, -57.69)
CIE-LCH	lch(29.55, 66.22, 299.40°)
OKLab	oklab(40.58% 0.0097 -0.1665)
OKLCH	oklch(40.58% 0.167 273.3)
XYZ	xyz(9.1117, 6.0537, 34.3996)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3138A1 #A19A31

analogous

#3170A1 #3138A1 #6231A1

triadic

#3138A1 #A13138 #38A131

tetradic

#3138A1 #A13170 #A19A31 #31A162

square

#3138A1 #A13170 #A19A31 #31A162

split-complementary

#3138A1 #A16231 #70A131

monochromatic

#141743 #232872 #3138A1 #4850C7 #777DD6

Accessibility & contrast

On white

9.50

#3138A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#3138A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3138A1

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3138A1	#FFFFFF	#000000	##FFFFFF
##3138A1	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA4

Deuteranopia (green-blind)

#00419F

Tritanopia (blue-blind)

#005367

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3138a1;
/* rgb */ color: rgb(49, 56, 161);
/* oklch */ color: oklch(40.6% 0.167 273.3);

Tailwind

colors: {
  custom: {
    50: '#786fbe',
    500: '#3138a1',
    950: '#000000',
  },
}

SCSS

$custom: #3138a1;
$custom-light: #786fbe;
$custom-dark: #000000;

JSON

{
  "hex": "#3138a1",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 161
  },
  "hsl": {
    "h": 236.25,
    "s": 53.333,
    "l": 41.176
  },
  "oklch": {
    "l": 0.40584,
    "c": 0.16681,
    "h": 273.3
  },
  "luminance": 0.06055
}

Semantic roles & 50–950 ramp

primary

#3138A1

secondary

#BEB970

accent

#D44BDD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #3138A1

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

Preview Lab → · Contrast checker → · Palette generator →