#2F388B#2F388B

#2F388B is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.137 H 273.4°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#2F388B
RGB	rgb(47, 56, 139)
HSL	hsl(234, 49%, 36%)
HSV	hsv(234, 66%, 55%)
CMYK	cmyk(66.2%, 59.7%, 0%, 45.5%)
CIE-LAB	lab(27.56, 24.23, -47.46)
CIE-LCH	lch(27.56, 53.29, 297.05°)
OKLab	oklab(38.51% 0.0082 -0.1366)
OKLCH	oklch(38.51% 0.137 273.4)
XYZ	xyz(7.2451, 5.2961, 25.0615)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F388B #8B822F

analogous

#2F668B #2F388B #542F8B

triadic

#2F388B #8B2F38 #388B2F

tetradic

#2F388B #8B2F66 #8B822F #2F8B54

square

#2F388B #8B2F66 #8B822F #2F8B54

split-complementary

#2F388B #8B542F #668B2F

monochromatic

#101330 #20265D #2F388B #3E4AB9 #6872CC

Accessibility & contrast

On white

10.20

#2F388B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#2F388B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F388B

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F388B	#FFFFFF	#000000	##FFFFFF
##2F388B	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458E

Deuteranopia (green-blind)

#003D89

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2f388b;
/* rgb */ color: rgb(47, 56, 139);
/* oklch */ color: oklch(38.5% 0.137 273.4);

Tailwind

colors: {
  custom: {
    50: '#736eae',
    500: '#2f388b',
    950: '#000000',
  },
}

SCSS

$custom: #2f388b;
$custom-light: #736eae;
$custom-dark: #000000;

JSON

{
  "hex": "#2f388b",
  "rgb": {
    "r": 47,
    "g": 56,
    "b": 139
  },
  "hsl": {
    "h": 234.13,
    "s": 49.462,
    "l": 36.471
  },
  "oklch": {
    "l": 0.38508,
    "c": 0.13681,
    "h": 273.4
  },
  "luminance": 0.05297
}

Semantic roles & 50–950 ramp

primary

#2F388B

secondary

#B3AB63

accent

#CB4FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #2F388B

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

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