#2F389B#2F389B

#2F389B is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.9% C 0.159 H 272.8°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#2F389B
RGB	rgb(47, 56, 155)
HSL	hsl(235, 53%, 40%)
HSV	hsv(235, 70%, 61%)
CMYK	cmyk(69.7%, 63.9%, 0%, 39.2%)
CIE-LAB	lab(28.90, 30.08, -55.11)
CIE-LCH	lch(28.90, 62.78, 298.62°)
OKLab	oklab(39.91% 0.0078 -0.159)
OKLCH	oklch(39.91% 0.159 272.8)
XYZ	xyz(8.5009, 5.7984, 31.6752)
Luminance	0.0580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F389B #9B922F

analogous

#2F6E9B #2F389B #5C2F9B

triadic

#2F389B #9B2F38 #389B2F

tetradic

#2F389B #9B2F6E #9B922F #2F9B5C

square

#2F389B #9B2F6E #9B922F #2F9B5C

split-complementary

#2F389B #9B5C2F #6E9B2F

monochromatic

#13163D #21276C #2F389B #424DC6 #7179D4

Accessibility & contrast

On white

9.72

#2F389B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2F389B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F389B

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F389B	#FFFFFF	#000000	##FFFFFF
##2F389B	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499E

Deuteranopia (green-blind)

#003F99

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2f389b;
/* rgb */ color: rgb(47, 56, 155);
/* oklch */ color: oklch(39.9% 0.159 272.8);

Tailwind

colors: {
  custom: {
    50: '#766eb9',
    500: '#2f389b',
    950: '#000000',
  },
}

SCSS

$custom: #2f389b;
$custom-light: #766eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f389b",
  "rgb": {
    "r": 47,
    "g": 56,
    "b": 155
  },
  "hsl": {
    "h": 235,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.39912,
    "c": 0.15922,
    "h": 272.8
  },
  "luminance": 0.05799
}

Semantic roles & 50–950 ramp

primary

#2F389B

secondary

#BBB56A

accent

#D14BDD

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2F389B

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

Preview Lab → · Contrast checker → · Palette generator →