#2F397C#2F397C

#2F397C is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.5% C 0.113 H 273.3°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#2F397C
RGB	rgb(47, 57, 124)
HSL	hsl(232, 45%, 34%)
HSV	hsv(232, 62%, 49%)
CMYK	cmyk(62.1%, 54%, 0%, 51.4%)
CIE-LAB	lab(26.69, 18.03, -39.50)
CIE-LCH	lch(26.69, 43.42, 294.54°)
OKLab	oklab(37.49% 0.0065 -0.1131)
OKLCH	oklch(37.49% 0.113 273.3)
XYZ	xyz(6.2723, 4.9853, 19.6966)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F397C #7C722F

analogous

#2F5F7C #2F397C #4B2F7C

triadic

#2F397C #7C2F39 #397C2F

tetradic

#2F397C #7C2F5F #7C722F #2F7C4B

square

#2F397C #7C2F5F #7C722F #2F7C4B

split-complementary

#2F397C #7C4B2F #5F7C2F

monochromatic

#0D1023 #1E2550 #2F397C #404DA8 #626FC3

Accessibility & contrast

On white

10.51

#2F397C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#2F397C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F397C

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F397C	#FFFFFF	#000000	##FFFFFF
##2F397C	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12437E

Deuteranopia (green-blind)

#003C7B

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2f397c;
/* rgb */ color: rgb(47, 57, 124);
/* oklch */ color: oklch(37.5% 0.113 273.3);

Tailwind

colors: {
  custom: {
    50: '#6f6fa2',
    500: '#2f397c',
    950: '#000000',
  },
}

SCSS

$custom: #2f397c;
$custom-light: #6f6fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#2f397c",
  "rgb": {
    "r": 47,
    "g": 57,
    "b": 124
  },
  "hsl": {
    "h": 232.208,
    "s": 45.029,
    "l": 33.529
  },
  "oklch": {
    "l": 0.37495,
    "c": 0.11334,
    "h": 273.3
  },
  "luminance": 0.04986
}

Semantic roles & 50–950 ramp

primary

#2F397C

secondary

#AAA05C

accent

#C453D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #2F397C

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

Preview Lab → · Contrast checker → · Palette generator →