#3138A3#3138A3

#3138A3 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.8% C 0.169 H 273.2°. Best body text is #FFFFFF at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#3138A3
RGB	rgb(49, 56, 163)
HSL	hsl(236, 54%, 42%)
HSV	hsv(236, 70%, 64%)
CMYK	cmyk(69.9%, 65.6%, 0%, 36.1%)
CIE-LAB	lab(29.73, 33.22, -58.60)
CIE-LCH	lch(29.73, 67.37, 299.55°)
OKLab	oklab(40.77% 0.0096 -0.1692)
OKLCH	oklch(40.77% 0.169 273.2)
XYZ	xyz(9.2894, 6.1248, 35.3359)
Luminance	0.0613 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3138A3 #A39C31

analogous

#3171A3 #3138A3 #6331A3

triadic

#3138A3 #A33138 #38A331

tetradic

#3138A3 #A33171 #A39C31 #31A363

square

#3138A3 #A33171 #A39C31 #31A363

split-complementary

#3138A3 #A36331 #71A331

monochromatic

#151845 #232874 #3138A3 #4951C8 #787ED6

Accessibility & contrast

On white

9.44

#3138A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#3138A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3138A3

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3138A3	#FFFFFF	#000000	##FFFFFF
##3138A3	1.00	9.44	2.23	9.44
#FFFFFF	9.44	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA6

Deuteranopia (green-blind)

#0041A1

Tritanopia (blue-blind)

#005468

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3138a3;
/* rgb */ color: rgb(49, 56, 163);
/* oklch */ color: oklch(40.8% 0.169 273.2);

Tailwind

colors: {
  custom: {
    50: '#796fbf',
    500: '#3138a3',
    950: '#000000',
  },
}

SCSS

$custom: #3138a3;
$custom-light: #796fbf;
$custom-dark: #000000;

JSON

{
  "hex": "#3138a3",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 163
  },
  "hsl": {
    "h": 236.316,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.40768,
    "c": 0.16949,
    "h": 273.2
  },
  "luminance": 0.06126
}

Semantic roles & 50–950 ramp

primary

#3138A3

secondary

#BFBA71

accent

#D44BDD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #3138A3

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

Preview Lab → · Contrast checker → · Palette generator →